參數(shù)資料
型號： 100-1254-2
廠商： Bluetechnix
文件頁數(shù)： 5/32頁
文件大?。?/td> 0K
描述： MODULE BF527-C-C-Q50S64F8
標(biāo)準(zhǔn)包裝： 1
模塊/板類型： 核心模塊
CM-BF527_HUM_V2.2.docx
12
2.2 Boot Mode
By default the boot mode = 0000 (BMODE3 = low, BMODE2 = low, BMODE1 = low, BMODE0 = low). All BMODE pins
have internal pull down resistors.
Switch Settings
BM3,BM2,BM1,BM0
Boot Mode
Description
0000
0 (default)
Idle - No boot Reserved
0001
1
Boot from 8- or 16-bit external flash memory
0010
2
Boot from 16-bit asynchronous FIFO.
0011
3
Boot from serial SPI memory (EEPROM or flash)
0100
4
Boot from SPI host device
0101
5
Boot from serial TWI memory (EEPROM/flash)
0110
6
Boot from TWI host
0111
7
Boot from UART0 Host
1000
8
Boot from UART1 Host
1001
9
Reserved
1010
10
Boot from SDRAM
1011
11
Boot from OTP memory
1100
12
Boot from 8-bit NAND flash via NFC using PORTF data pins
1101
13
Boot from 8-bit NAND flash via NFC using PORTH data pins
1110
14
Boot from 16-Bit Host DMA
1111
15
Boot from 8-Bit Host DMA
Connect BMODE0 to Vcc and leave BMODE1, BMODE2 and BMODE3 pins open for Boot Mode 0001 equals to 8 or 16
bit PROM/FLASH boot mode. This is the default boot mode of the BLACKSheep OS and uClinux.
Note: Boot Modes 8-15 are not supported with the DEV-BF5xx-DALite or EVAL-BF5xx
2.3 Memory Map
2.3.1 Core Module Memory
Memory Type
Start Address
End Address
Size
Comment
FLASH 1)
PH9 Flag Low
PG11 Flag Low
0x20000000
0x201FFFFF
2MB
of 8MB Flash,
PF48F2000P0ZBQ0S
FLASH 1)
PH9 Flag High
PG11 Flag Low
0x20000000
0x201FFFFF
2MB
of 8MB Flash,
PF48F2000P0ZBQ0S
FLASH 1)
PH9 Flag Low
PG11 Flag High
0x20000000
0x201FFFFF
2MB
of 8MB Flash,
PF48F2000P0ZBQ0S
FLASH 1)
PH9 Flag High
PG11 Flag High
0x20000000
0x201FFFFF
2MB
of 8MB Flash,
PF48F2000P0ZBQ0S
SD-RAM
0x00000000
0x01FFFFFF
32MB
16Bit Bus, Micron
MT48LC16M16A2FG
*) Please be aware that you have to unlock the flash before starting an erase process!
The maximum amount of memory addressable by a single asynchronous memory bank, of the Blackfin processor is
2MB. In order to be able to use more than 2MB on a single bank, 2 GPIOs are used to select which 2MB section of
flash is visible in the memory window of the Blackfin processor. This frees up the remaining banks for the user.
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