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README.adnpesc1_base32
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TODO: specify IDE i/f
===============================================================================
C P U , M E M O R Y , I N / O U T C O M P O N E N T S
===============================================================================
see also [1]-[5]
CPU: "DNP_ESC1"
32 bit NIOS for 50 MHz
512 Byte for register file (30 levels)
with out instruction cache
with out data cache
2 KByte On Chip ROM with GERMS boot monitor
with out On Chip RAM
MSTEP multiplier
no Debug Core
no On Chip Instrumentation (OCI)
U-Boot CFG: CONFIG_SYS_NIOS_CPU_CLK = 50000000
CONFIG_SYS_NIOS_CPU_ICACHE = (not present)
CONFIG_SYS_NIOS_CPU_DCACHE = (not present)
CONFIG_SYS_NIOS_CPU_REG_NUMS = 512
CONFIG_SYS_NIOS_CPU_MUL = 0
CONFIG_SYS_NIOS_CPU_MSTEP = 1
CONFIG_SYS_NIOS_CPU_DBG_CORE = 0
IRQ: Nr. | used by
------+--------------------------------------------------------
16 | TIMER0 | CONFIG_SYS_NIOS_CPU_TIMER0_IRQ = 16
17 | UART0 | CONFIG_SYS_NIOS_CPU_UART0_IRQ = 17
18 | UART1 | CONFIG_SYS_NIOS_CPU_UART1_IRQ = 18
20 | LAN91C111 | CONFIG_SYS_NIOS_CPU_LAN0_IRQ =
| PIO6 | CONFIG_SYS_NIOS_CPU_PIO6_IRQ = 20
25 | SPI0 | CONFIG_SYS_NIOS_CPU_SPI0_IRQ = 25
31 | PIO7 | CONFIG_SYS_NIOS_CPU_PIO7_IRQ = 31
32 | PIO8 | CONFIG_SYS_NIOS_CPU_PIO8_IRQ = 32
33 | PIO9 | CONFIG_SYS_NIOS_CPU_PIO9_IRQ = 33
34 | PIO10 | CONFIG_SYS_NIOS_CPU_PIO10_IRQ = 34
35 | PIO11 | CONFIG_SYS_NIOS_CPU_PIO11_IRQ = 35
36 | PIO12 | CONFIG_SYS_NIOS_CPU_PIO12_IRQ =
| IDE0 | CONFIG_SYS_NIOS_CPU_IDE0_IRQ = 36
37 | PIO13 | CONFIG_SYS_NIOS_CPU_PIO13_IRQ =
| IDE1 | CONFIG_SYS_NIOS_CPU_IDE1_IRQ = 37
MEMORY: 8 MByte Flash
16 MByte SDRAM
Timer: TIMER0: high priority programmable timer (IRQ16)
U-Boot CFG: CONFIG_SYS_NIOS_CPU_TICK_TIMER = 0
CONFIG_SYS_NIOS_CPU_USER_TIMER = (not present)
PIO: Nr. | description
------+--------------------------------------------------------
PIO0 | PORTA: 8 in/outputs for general purpose usage
PIO1 | PORTB: 8 in/outputs for general purpose usage
PIO2 | PORTC: 4 in/outputs for general purpose usage
PIO3 | RCM: 1 input for RCM_EN# jumper (Req.Conf.Mon.)
PIO4 | WDTENA: 1 output to enable the on-board watchdog
PIO5 | WDTTRIG: 1 output to trigger the on-board watchdog
PIO6 | LAN0INT: 1 input for LAN91C111 irq input (IRQ20)
PIO7 | INT1: 1 input for general purpose irq (IRQ31)
PIO8 | INT2: 1 input for general purpose irq (IRQ32)
PIO9 | INT3: 1 input for general purpose irq (IRQ33)
PIO10| INT4: 1 input for general purpose irq (IRQ34)
PIO11| INT5: 1 input for general purpose irq (IRQ35)
PIO12| INT6: 1 input for general purpose irq (IRQ36)
| IDE0INT: (same) for IDE0 irq input
PIO13| INT7: 1 input for general purpose irq (IRQ37)
| IDE1INT: (same) for IDE1 irq input
U-Boot CFG: CONFIG_SYS_NIOS_CPU_PORTA_PIO = 0
CONFIG_SYS_NIOS_CPU_PORTB_PIO = 1
CONFIG_SYS_NIOS_CPU_PORTC_PIO = 2
CONFIG_SYS_NIOS_CPU_RCM_PIO = 3
CONFIG_SYS_NIOS_CPU_WDTENA_PIO = 4
CONFIG_SYS_NIOS_CPU_WDTTRIG_PIO = 5
CONFIG_SYS_NIOS_CPU_LED_PIO = (not present)
UART: UART0: fixed baudrate of 115200, fixed protocol 8N1, RTS/CTS (IRQ17)
UART1: fixed baudrate of 115200, fixed protocol 8N1,
without handshake RTS/CTS (IRQ18)
SPI: SPI0: master capable, 1 slave selectable, 250kHz target clock,
2 usec targets delay between slave select and clock,
data is transferred MSB-first / LSB-last (IRQ25)
LAN: SMsC LAN91C111 with:
- without offset
- data bus width 16 bit (on-board hard wired at 32 bit bus)
- !!! 32 bit bus access --> each address * 2 !!!
IDE: (TODO)
===============================================================================
M E M O R Y M A P
===============================================================================
- - - - - - - - - - - external extension - - - - - - - - - - - - - - - - - - -
0x44000000 ---32-----------16|15------------0-
| | | \
: (real size : : |
EXT3 (CS4) : and content : : > CONFIG_SYS_NIOS_CPU_CS3_SIZE
: unknown) : : | = 0x01000000
| | | /
0x43000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS3_BASE
| | | \
: (real size : : |
EXT2 (CS3) : and content : : > CONFIG_SYS_NIOS_CPU_CS2_SIZE
: unknown) : : | = 0x01000000
| | | /
0x42000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS2_BASE
| | | \
: (real size : : |
EXT1 (CS2) : and content : : > CONFIG_SYS_NIOS_CPU_CS1_SIZE
: unknown) : : | = 0x01000000
| | | /
0x41000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS1_BASE
| | | \
: (real size : : |
EXT0 (CS1) : and content : : > CONFIG_SYS_NIOS_CPU_CS0_SIZE
: unknown) : : | = 0x01000000
| | | /
0x40000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS0_BASE
| |
: gap :
: :
- - - - - - - - - - - external memory - - - - - - - - - - - - - - - - - - -
: :
: gap :
| |
0x03000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_STACK
| . | \
| . | | (U-Boot run-time system)
| . | |
| . | > CONFIG_SYS_MONITOR_LEN
| . | | = 0x00040000
| . | |
| . | /
0x02fc0000 --+32-----------16|15------------0+ TEXT_BASE
| . | \
| . | > CONFIG_SYS_MALLOC_LEN (heap)
| . | /
--+32-----------16|15------------0+
| . | \
| . | > CONFIG_SYS_GBL_DATA_SIZE (global)
| . | /
--+32-----------16|15------------0+ CONFIG_SYS_INIT_SP (u-boot stack)
| . | \ \
| . | | |
| . | | > stack area
| . | | |
| . | | V
| . | |
| . | |
SDRAM | . | > CONFIG_SYS_NIOS_CPU_SDRAM_SIZE
| . | | = 0x01000000
| . | |
0x02000100 |- - - - - - - - - - - - - - - -+-|-
| . | | \
| . | | |
| . | | > CONFIG_SYS_NIOS_CPU_VEC_SIZE
| . | | | = 0x00000100
| | / /
0x02000000 |- - - - - - - - - - - - - - - -+- - CONFIG_SYS_NIOS_CPU_VEC_BASE
0x02000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_SDRAM_BASE
| | \
: gap : > (space for 2nd Flash)
| | /
0x01800000 ---32-----------16|15------------0-
| sector 127 | \
+ 0x7f0000 |- - - - - - - - - - - - - - - -| |
| : | |
Flash |- - - - : - - - -| > CONFIG_SYS_NIOS_CPU_FLASH_SIZE
| sector 1 : | | = 0x00800000
+ 0x010000 |- - - - - - - - - - - - - - - -| |
| sector 0 (size = 0x10000) | /
0x01000000 ---8-------------4|3-------------0- CONFIG_SYS_NIOS_CPU_FLASH_BASE
| |
: gap :
: :
- - - - - - - - - - - external i/o - - - - - - - - - - - - - - - - - - -
: :
: gap :
| |
0x00010020 ---32-----------16|15------------0-
| | \
| register bank | |
| size = (real_size << 1) | |
| real_size = 0x10 | |
| +--------.---.---.--- | |
| | bank 0 \ 1 \ 2 \ 3 \ | |
| |---------------------------+ | |
LAN91C111 | | BANK | RESERVED | | > na_enet_size
| |- - - - - - -|- - - - - - -| | | = 0x00000020
| | RPCR | MIR | | |
| |- - - - - - -|- - - - - - -| | |
| | COUNTER | RCR | | |
| |- - - - - - -|- - - - - - -| | |
| | EPH STATUS | TCR | | |
| +---------------------------+ | /
0x00010000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_LAN0_BASE
| |
: gap :
: :
- - - - - - - - - - - on chip i/o - - - - - - - - - - - - - - - - - - -
: :
: gap :
| |
0x00001040 ---32-----------16|15------------0-
| | | \
: : : |
IDE1 i/f : : : > 0x00000020
[5] : : : |
| | | /
0x00001020 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_IDE1
| | | \
: : : |
IDE0 i/f : : : > 0x00000020
[5] : : : |
| | | /
0x00001000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_IDE0
| |
: gap :
| |
0x00000980 ---32-----------16|15------------0-
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO13 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000970 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO13
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO12 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000960 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO12
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO11 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000950 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO11
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO10 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000940 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO10
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO9 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000930 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO9
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO8 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000920 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO8
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO7 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000910 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO7
| edgecapture (1 bit) (rw) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO6 | interruptmask (1 bit) (rw) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000900 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO6
| |
: gap :
| |
0x000008e0 ---32-----------16|15------------0-
| (unused) | \
+ 0x1c |- - - - - - - - - - - - - - - -| |
| endofpacket (16 bit) (rw) | |
+ 0x18 |- - - - - - - - - - - - - - - -| |
| slaveselect (1 bit) (rw) | |
+ 0x14 |- - - - - - - - - - - - - - - -| |
SPI0 | (reserved) | |
[4] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020
| control (11 bit) (rw) | |
+ 0x0c |- - - - - - - - - - - - - - - -| |
| status (9 bit) (rw) | |
+ 0x08 |- - - - - - - - - - - - - - - -| |
| txdata (16 bit) (wo) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| rxdata (16 bit) (ro) | /
0x000008c0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_SPI0
| (unused) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO5 | (unused) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (wo) | /
0x000008b0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO5
| (unused) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO4 | (unused) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (wo) | /
0x000008a0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO4
| (unused) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO3 | (unused) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| (unused) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (1 bit) (ro) | /
0x00000890 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO3
| (unused) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO2 | (unused) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| direction (4 bit) (rw) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (4 bit) (rw) | /
0x00000880 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO2
| (unused) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO1 | (unused) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| direction (8 bit) (rw) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (8 bit) (rw) | /
0x00000870 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO1
| (unused) | \
+ 0x0c |- - - - - - - - - - - - - - - -| |
PIO0 | (unused) | |
[3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
| direction (8 bit) (rw) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| data (8 bit) (rw) | /
0x00000860 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO0
| (unused) | \
+ 0x1c |- - - - - - - - - - - - - - - -| |
| (unused) | |
+ 0x18 |- - - - - - - - - - - - - - - -| |
| snaph (16 bit) (rw) | |
+ 0x14 |- - - - - - - - - - - - - - - -| |
TIMER0 | snapl (16 bit) (rw) | |
[2] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020
| periodh (16 bit) (rw) | |
+ 0x0c |- - - - - - - - - - - - - - - -| |
| periodl (16 bit) (rw) | |
+ 0x08 |- - - - - - - - - - - - - - - -| |
| control (4 bit) (rw) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| status (2 bit) (rw) | /
0x00000840 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_TIMER0
| (unused) | \
+ 0x1c |- - - - - - - - - - - - - - - -| |
| (unused) | |
+ 0x18 |- - - - - - - - - - - - - - - -| |
| (unused) | |
+ 0x14 |- - - - - - - - - - - - - - - -| |
UART1 | (unused) | > 0x00000020
[1] + 0x10 |- - - - - - - - - - - - - - - -| |
| control (10 bit) (rw) | |
+ 0x0c |- - - - - - - - - - - - - - - -| |
| status (10 bit) (rw) | |
+ 0x08 |- - - - - - - - - - - - - - - -| |
| txdata (8 bit) (wo) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| rxdata (8 bit) (ro) | /
0x00000820 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_UART1
| (unused) | \
+ 0x1c |- - - - - - - - - - - - - - - -| |
| (unused) | |
+ 0x18 |- - - - - - - - - - - - - - - -| |
| (unused) | |
+ 0x14 |- - - - - - - - - - - - - - - -| |
UART0 | (unused) | > 0x00000020
[1] + 0x10 |- - - - - - - - - - - - - - - -| |
| control (10 bit) (rw) | |
+ 0x0c |- - - - - - - - - - - - - - - -| |
| status (10 bit) (rw) | |
+ 0x08 |- - - - - - - - - - - - - - - -| |
| txdata (8 bit) (wo) | |
+ 0x04 |- - - - - - - - - - - - - - - -| |
| rxdata (8 bit) (ro) | /
0x00000800 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_UART0
- - - - - - - - - - - on chip memory 1 - - - - - - - - - - -
0x00000800 ---32-----------16|15------------0-
| : | \
| : | |
GERMS | : | > CONFIG_SYS_NIOS_CPU_ROM_SIZE
| : | | = 0x00000800
| : | /
0x00000000 |- - - - - - - - - - - - - - - -+- - CONFIG_SYS_NIOS_CPU_RST_VECT
0x00000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_ROM_BASE
===============================================================================
F L A S H M E M O R Y A L L O C A T I O N
===============================================================================
0x01800000 ---8-------------4|3-------------0-
| : | \
| : | |
| : | > 6 MByte ROM FS
| : | |
| : | /
0x01200000 --+- - - - - - - -:- - - - - - - -+- - file system image(s)
| : | \
| : | |
| : | > 1728 kByte ucLinux
| : | |
| : | /
0x01050000 --+- - - - - - - -:- - - - - - - -+- - os image(s)
| : | \
0x01040000 --+- - - - - - - -:- - - - - - - -+-|- u-boot environment
| : | |
| : | > 320 kByte U-Boot
| : | |
| : | |
| : | /
0x01000000 --+- - - - - - - -:- - - - - - - -+- - u-boot _start()
0x01000000 ---8-------------4|3-------------0-
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R E F E R E N C E S
===============================================================================
[1] http://www.altera.com/literature/ds/ds_nios_uart.pdf
[2] http://www.altera.com/literature/ds/ds_nios_timer.pdf
[3] http://www.altera.com/literature/ds/ds_nios_pio.pdf
[4] http://www.altera.com/literature/ds/ds_nios_spi.pdf
[5] http://www.t13.org/index.html
===============================================================================
Stephan Linz <linz@li-pro.net>