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-
-TODO: specify IDE i/f
- specify OCI
-
-
-===============================================================================
- 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: "standard_32"
- 32 bit NIOS for 50 MHz
- 256 Byte for register file (15 levels)
- 4 KByte instruction cache (4 bytes in each cache line)
- 4 KByte data cache (4 bytes in each cache line)
- 2 KByte On Chip ROM with GERMS boot monitor
- 64 KByte On Chip RAM
- MSTEP multiplier
- no Debug Core
- On Chip Instrumentation (OCI) enabled
-
- U-Boot CFG: CONFIG_SYS_NIOS_CPU_CLK = 50000000
- CONFIG_SYS_NIOS_CPU_ICACHE = 4096
- CONFIG_SYS_NIOS_CPU_DCACHE = 4096
- CONFIG_SYS_NIOS_CPU_REG_NUMS = 256
- CONFIG_SYS_NIOS_CPU_MUL = 0
- CONFIG_SYS_NIOS_CPU_MSTEP = 1
- CONFIG_SYS_NIOS_CPU_DBG_CORE = 0
-
-OCI: (TODO)
-
-IRQ: Nr. | used by
- ------+--------------------------------------------------------
- 16 | TIMER0 | CONFIG_SYS_NIOS_CPU_TIMER0_IRQ = 16
- 25 | UART0 | CONFIG_SYS_NIOS_CPU_UART0_IRQ = 25
- 30 | LAN91C111 | CONFIG_SYS_NIOS_CPU_LAN0_IRQ = 30
- 35 | PIO5 | CONFIG_SYS_NIOS_CPU_PIO5_IRQ = 35
- 40 | PIO0 | CONFIG_SYS_NIOS_CPU_PIO0_IRQ = 40
- 50 | TIMER1 | CONFIG_SYS_NIOS_CPU_TIMER1_IRQ = 50
-
-MEMORY: 8 MByte Flash
- 1 MByte SRAM
- 16 MByte SDRAM
-
-Timer: TIMER0: high priority programmable timer (IRQ16)
- TIMER1: low priority fixed timer for 10 ms @ 50 MHz (IRQ50)
-
- U-Boot CFG: CONFIG_SYS_NIOS_CPU_TICK_TIMER = 1
- CONFIG_SYS_NIOS_CPU_USER_TIMER = 0
-
-PIO: Nr. | description
- ------+--------------------------------------------------------
- PIO0 | BUTTON: 4 inputs for user push buttons (IRQ40)
- PIO1 | LCD: 11 in/outputs for ASCII LCD
- PIO2 | LED: 8 outputs for user LEDs
- PIO3 | SEVENSEG: 16 outputs for user seven segment display
- PIO4 | RECONF: 1 in/output for . . . . . . . . . . . .
- PIO5 | CFPRESENT: 1 input for CF present event (IRQ35)
- PIO6 | CFPOWER: 1 output to controll CF power supply
- PIO7 | CFATASEL: 1 output to controll CF ATA card select
-
- U-Boot CFG: CONFIG_SYS_NIOS_CPU_BUTTON_PIO = 0
- CONFIG_SYS_NIOS_CPU_LCD_PIO = 1
- CONFIG_SYS_NIOS_CPU_LED_PIO = 2
- CONFIG_SYS_NIOS_CPU_SEVENSEG_PIO = 3
- CONFIG_SYS_NIOS_CPU_RECONF_PIO = 4
- CONFIG_SYS_NIOS_CPU_CFPRESENT_PIO = 5
- CONFIG_SYS_NIOS_CPU_CFPOWER_PIO = 6
- CONFIG_SYS_NIOS_CPU_CFATASEL_PIO = 7
-
-UART: UART0: fixed baudrate of 115200, fixed protocol 8N1,
- without handshake RTS/CTS (IRQ25)
-
-LAN: SMsC LAN91C111 with:
- - offset 0x300 (LAN91C111_REGISTERS_OFFSET)
- - data bus width 32 bit (LAN91C111_DATA_BUS_WIDTH)
-
-IDE: (TODO)
-
-
-===============================================================================
- M E M O R Y M A P
-===============================================================================
-
-- - - - - - - - - - - external memory 2 - - - - - - - - - - - - - - - - - - -
-
- 0x02000000 ---32-----------16|15------------0-
- | : | \
- | : | |
- SDRAM | : | > CONFIG_SYS_NIOS_CPU_SDRAM_SIZE
- | : | | = 0x01000000
- | : | /
- 0x01000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_SDRAM_BASE
- | |
- : gap :
- : :
-
-- - - - - - - - - - - on chip i/o - - - - - - - - - - - - - - - - - - -
-
- : :
- : gap :
- | |
- 0x00920a80 ---32-----------16|15------------0-
- | | | \
- : (real size : : |
- IDE i/f : and content : : > 0x00000080
- [5] : unknown) : : |
- | | | /
- 0x00920a00 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_IDE0
- | (unused) | \
- + 0x1c |- - - - - - - - - - - - - - - -| |
- | (unused) | |
- + 0x18 |- - - - - - - - - - - - - - - -| |
- | (unused) | |
- + 0x14 |- - - - - - - - - - - - - - - -| |
- TIMER1 | (unused) | |
- [3] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020
- | (unused) | |
- + 0x0c |- - - - - - - - - - - - - - - -| |
- | (unused) | |
- + 0x08 |- - - - - - - - - - - - - - - -| |
- | control (1 bit) (rw) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | status (2 bit) (rw) | /
- 0x009209e0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_TIMER1
- | (unused) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO7 | (unused) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | (unused) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (1 bit) (wo) | /
- 0x009209d0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO7
- | (unused) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO6 | (unused) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | (unused) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (1 bit) (wo) | /
- 0x009209c0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO6
- | edgecapture (1 bit) (rw) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO5 | interruptmask (1 bit) (rw) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | (unused) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (1 bit) (ro) | /
- 0x009209b0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO5
- | (unused) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO4 | (unused) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | direction (1 bit) (rw) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (1 bit) (rw) | /
- 0x009209a0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO4
- | (unused) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO3 | (unused) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | (unused) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (16 bit) (wo) | /
- 0x00920990 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO3
- | (unused) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO2 | (unused) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | (unused) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (8 bit) (wo) | /
- 0x00920980 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO2
- | (unused) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO1 | (unused) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | direction (11 bit) (rw) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (11 bit) (rw) | /
- 0x00920970 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO1
- | edgecapture (4 bit) (rw) | \
- + 0x0c |- - - - - - - - - - - - - - - -| |
- PIO0 | interruptmask (4 bit) (rw) | |
- [4] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
- | (unused) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | data (4 bit) (ro) | /
- 0x00920960 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO0
- | (unused) | \
- + 0x1c |- - - - - - - - - - - - - - - -| |
- | (unused) | |
- + 0x18 |- - - - - - - - - - - - - - - -| |
- | snaph (16 bit) (rw) | |
- + 0x14 |- - - - - - - - - - - - - - - -| |
- TIMER0 | snapl (16 bit) (rw) | |
- [3] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020
- | periodh (16 bit) (rw) | |
- + 0x0c |- - - - - - - - - - - - - - - -| |
- | periodl (16 bit) (rw) | |
- + 0x08 |- - - - - - - - - - - - - - - -| |
- | control (4 bit) (rw) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | status (2 bit) (rw) | /
- 0x00920940 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_TIMER0
- | | \
- : gap : > (space for UART1)
- | | /
- 0x00920920 ---32-----------16|15------------0-
- | (unused) | \
- + 0x1c |- - - - - - - - - - - - - - - -| |
- | (unused) | |
- + 0x18 |- - - - - - - - - - - - - - - -| |
- | (unused) | |
- + 0x14 |- - - - - - - - - - - - - - - -| |
- UART0 | (unused) | > 0x00000020
- [2] + 0x10 |- - - - - - - - - - - - - - - -| |
- | control (10 bit) (rw) | |
- + 0x0c |- - - - - - - - - - - - - - - -| |
- | status (10 bit) (rw) | |
- + 0x08 |- - - - - - - - - - - - - - - -| |
- | txdata (8 bit) (wo) | |
- + 0x04 |- - - - - - - - - - - - - - - -| |
- | rxdata (8 bit) (ro) | /
- 0x00920900 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_UART0
-
-- - - - - - - - - - - on chip debugging - - - - - - - - - - - - - - - - - - -
-
- 0x00920900 -----------------------------------
- | | \
- : (real size : |
- OCI Debug : and content : > CONFIG_SYS_NIOS_CPU_OCI_SIZE
- : unknown) : | = 0x00000100
- | | /
- 0x00920800 ----------------------------------- CONFIG_SYS_NIOS_CPU_OCI_BASE
-
-- - - - - - - - - - - on chip memory 2 - - - - - - - - - - -
-
- 0x00920800 ---32-----------16|15------------0-
- | : | \
- | : | |
- GERMS | : | > CONFIG_SYS_NIOS_CPU_ROM_SIZE
- | : | | = 0x00000800
- | : | /
- 0x00920000 |- - - - - - - - - - - - - - - -+- - CONFIG_SYS_NIOS_CPU_RST_VECT
- 0x00920000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_ROM_BASE
-
-- - - - - - - - - - - external i/o - - - - - - - - - - - - - - - - - - -
-
- 0x00920000 ---32-----------16|15------------0-
- | gap | \
- 0x00910310 --+-------------------------------| |
- | | |
- | register bank (size = 0x10) | |
- | +--------.---.---.--- | |
- | | bank 0 \ 1 \ 2 \ 3 \ | |
- | |---------------------------+ | |
- LAN91C111 | | BANK | RESERVED | | |
- | |- - - - - - -|- - - - - - -| | > na_lan91c111_size
- | | RPCR | MIR | | | = 0x00010000
- | |- - - - - - -|- - - - - - -| | |
- | | COUNTER | RCR | | |
- | |- - - - - - -|- - - - - - -| | |
- | | EPH STATUS | TCR | | |
- | +---------------------------+ | |
- 0x00910300 --+--LAN91C111_REGISTERS_OFFSET---| |
- | gap | /
- 0x00910000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_LAN0_BASE
-
-- - - - - - - - - - - on chip memory 1 - - - - - - - - - - -
-
- 0x00910000 ---32-----------16|15------------0-
- | : | \
- | : | |
- onchip RAM | : | > CONFIG_SYS_NIOS_CPU_RAM_SIZE
- | : | | = 0x00010000
- | : | /
- 0x00900000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_RAM_BASE
-
-- - - - - - - - - - - external memory 1 - - - - - - - - - - - - - - - - - - -
-
- 0x00900000 ---32-----------16|15------------0-
- 0x00900000 --+32-----------16|15------------0+
- | . | \ \
- | . | | |
- | . | | > CONFIG_SYS_NIOS_CPU_VEC_SIZE
- | . | | | = 0x00000100
- | . | | /
- 0x008fff00 |- - - - - - - - - - - - - - - -+-|- CONFIG_SYS_NIOS_CPU_VEC_BASE
- 0x008fff00 |- - - - - - - - - - - - - - - -+-|- CONFIG_SYS_NIOS_CPU_STACK
- | . | | \
- | . | | |
- | . | | > stack area
- | . | | |
- | . | | V
- | . | |
- SRAM | . | > CONFIG_SYS_NIOS_CPU_SRAM_SIZE
- | . | | = 0x00100000
- | | /
- 0x00800000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_SRAM_BASE
- 0x00800000 ---8-------------4|3-------------0-
- | sector 127 | \
- + 0x7f0000 |- - - - - - - - - - - - - - - -| |
- | : | |
- Flash |- - - - : - - - -| > CONFIG_SYS_NIOS_CPU_FLASH_SIZE
- | sector 1 : | | = 0x00800000
- + 0x010000 |- - - - - - - - - - - - - - - -| |
- | sector 0 (size = 0x10000) | /
- 0x00000000 ---8-------------4|3-------------0- CONFIG_SYS_NIOS_CPU_FLASH_BASE
-
-
-===============================================================================
- F L A S H M E M O R Y A L L O C A T I O N
-===============================================================================
-
- 0x00800000 ---8-------------4|3-------------0-
- | : | \
- SAFE | : | > 1 MByte
- FPGA conf. | : | / (NOT usable by software)
- 0x00700000 --+- - - - - - - -:- - - - - - - -+-
- | : | \
- USER | : | > 1 MByte
- FPGA conf. | : | / (NOT usable by software)
- 0x00600000 --+- - - - - - - -:- - - - - - - -+-
- | : | \
- | : | |
- WEB pages | : | > 2 MByte
- | : | | (provisory usable)
- | : | /
- 0x00400000 --+- - - - - - - -:- - - - - - - -+-
- | : | \
- | : | |
- | : | |
- | : | > 4 MByte free for use
- | : | |
- 0x00040000 --+- - - - - - - -:- - - - - - - -+-|- u-boot _start()
- | : | /
- 0x00000000 |- - - - - - - -:- - - - - - - -+- - u-boot environment
- 0x00000000 ---8-------------4|3-------------0-
-
-
-===============================================================================
- R E F E R E N C E S
-===============================================================================
-[1] http://www.altera.com/literature/manual/mnl_nios_board_stratix_1s10.pdf
-[2] http://www.altera.com/literature/ds/ds_nios_uart.pdf
-[3] http://www.altera.com/literature/ds/ds_nios_timer.pdf
-[4] http://www.altera.com/literature/ds/ds_nios_pio.pdf
-[5] http://www.opencores.org/projects/ata/
- http://www.t13.org/index.html
-
-
-===============================================================================
-Stephan Linz <linz@li-pro.net>
generated by cgit v1.1 at 2024-12-11 18:54:09 +0000