UM0843 datasheet(23/48 Pages) STMICROELECTRONICS

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UM0843

Block descriptions

Doc ID16543 Rev 2

23/48

6.19

Jumper settings

Bits 3, 4, and 5 allow you to set the Functional configuration. The default configuration is

Configuration 3.

Table 17.

SW3 (SoC functional configuration)

Bit

Description

Test0 - refer to the table below for the configuration settings

Test1 - refer to the table below for the configuration settings

Test2 - refer to the table below for the configuration settings

Test3 - refer to the table below for the configuration settings

Test4 - refer to the table below for the configuration settings

BootSel - refer to the table below for the configuration settings

Table 18.

SW3 (debug configuration)

Test bit

Description

Normal Mode (No debug enabled)

ARM1 JTAG connected to J26

The ARM ETM bus available, but not linked out on this board.

Table 19.

SW3 (functional configuration)

Test bit

Description

6543

1011

Configuration 3

Table 20.

SW2 strapping options

SW2-x

Description

Settings

SW2_1

Little/Big endian

Little endian (default)

Big endian

SW2_2

EMI_ACK#

ACK enabled

1GPIO

SW2_3

NAND bus width

8-bit NAND Flash

16-bit NAND Flash

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