Kontron COMe-cCT6 Instrukcja Użytkownika Strona 32

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COMe-cCT6 / Features and Interfaces
4.4 Serial Peripheral Interface (SPI)
The Serial Peripheral Interface Bus or SPI bus is a synchronous serial data link standard named by Motorola that operates
in full duplex mode. Devices communicate in master/slave mode where the master device initiates the data frame.
Multiple slave devices are allowed with individual slave select (chip select) lines. Sometimes SPI is called a “four wire”
serial bus, contrasting with three, two, and one wire serial buses.
The SPI interface can only be used with a SPI flash device to boot from external BIOS on the
baseboard.
4.5 SPI boot
The COMe-cCT6 supports boot from an external SPI Flash. It can be configured by pin A34 (BIOS_DIS#0) and pin B88
(BIOS_DIS1#) in following configuration:
BIOS_DIS0# BIOS_DIS1# Function
open open Boot on-module BIOS
GND open Boot baseboard LPC FWH
open GND Baseboard SPI = Boot Device 1, on-module SPI = Boot Device 2
GND GND Baseboard SPI = Boot Device 2, on-module SPI = Boot Device 1
By default only SPI Boot Device 1 is used in configuration 3 & 4. Both SPI Boot Devices are
used by splitting the BIOS with modified descriptor table in customized versions only
Recommended SPI boot flash types for 8-SOIC package
Size Manufacturer Part Number Device ID
16Mbit Atmel AT26DF161 0x1F4600
16Mbit Atmel AT26DF161A 0x1F4601
16Mbit Atmel AT25DF161 0x1F4602
16Mbit Atmel AT25DQ161 0x1F8600
16Mbit Macronix MX25L1605A(D)(36E)(06E) 0xC22015
16Mbit Macronix MX25L1635D 0xC22415
16Mbit SST/Microchip SST25VF016B 0xBF2541
16Mbit Winbond W25X16BV 0xEF3015
16Mbit Winbond W25Q16BV(CV) 0xEF4015
Size Manufacturer Part Number Device ID
32Mbit Atmel AT25/26DF321 0x1F4700
32Mbit Atmel AT25DF321A 0x1F4701
32Mbit Macronix MX25L3205A(D)(06E) 0xC22016
32Mbit Macronix MX25L3225D(35D)(36D) 0xC25E16
32Mbit SST/Microchip SST25VF032B 0XBF254A
32Mbit Winbond W25X32BV 0xEF3016
32Mbit Winbond W25Q32BV, 0xEF4016
Size Manufacturer Part Number Device ID
64Mbit Atmel AT25DF641(A) 0x1F4800
64Mbit Atmel AT25DQ641 0x1F8800
64Mbit Macronix MX25L6405D(45E)(36E)(06E)(73E) 0xC22017
64Mbit Macronix MX25L6455E 0xC22617
64Mbit Macronix MX25U6435F 0xC22537
64Mbit SST/Microchip SST25VF064C 0xBF254B
64Mbit Winbond W25X64BV 0xEF3017
64Mbit Winbond W25Q64BV(CV)(FV) 0xEF4017
64Mbit Winbond W25Q64DW 0XEF6017
64Mbit Winbond W25Q64FW 0XEF6017
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