UM0843 datasheet(21/48 Pages) STMICROELECTRONICS

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UM0843

Block descriptions

Doc ID16543 Rev 2

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6.9

NAND Flash

The NAND Flash is connected to the EMI interface of CPU, one NAND Flash (U4) is

available on the board, the bit-width is 8-bit, and the current memory size is 8GMbit.

6.10

Serial NOR Flash

There are two serial NOR Flash, one Serial NOR Flash (U26) is connected to the SMI

interface of CPU, the bit-width is 8-bit, and the current memory size is 64Mbit; the another

serial NOR FLASH (U29) is connected to the SPI interface of CPU, the bit-width is 8-bit, and

the current memory size is 4Mbit.

6.11

Parallel NOR Flash

There are two Parallel NOR FLASH (U7, U10) connected to the EMI interface of CPU, the

bit-width is 32-bit, and the current memory size is 128Mbit.

6.12

EEPROM

The EEPROM is connected to the I2C interface of CPU, one EEPROM (U28) is available on

the board, the bit-width is 8-bit, and the current memory size is 4Kbit.

6.13

DDR2 SDRAM

The DDR2 SDRAM is connected to the DDR2 interface of CPU, one DDR2 SDRAM (U23) is

available on the board, the bit-width is 16-bit, and the current memory size is 1Gbit.

JP3

NOR Flash is mapped to EMI CSn2

memory space:

0x70000000

JP4

NOR Flash is mapped to EMI CSn3

memory space:

0x80000000

JP5

NOR Flash is mapped to EMI CSn4

memory space:

0x90000000

JP6

NOR Flash is mapped to EMI CSn5

memory space:

Table 16.

Memory space map jumpers of NOR Flash (continued)

Jumper

Description

Configuration

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