COTRUST CTH200 Series

To Next Page

To Previous Page

Appendix

324

SMB6: CPU identification register

SMB6 is CPU identification (ID) register, use for identify CPU type, as detailed in the following

table:

SM address

Function description(read only)

SMB6

CPU ID register

SM6.0~SM6.3

Reserved

SM6.4~SM6.7

Use for identifying CPU type

0000: CPU212, CPU222; 0010: CPU214, CPU224;

0110: CPU221; 1000: CPU215;

1001: CPU216, CPU226, CPU226XM; 1110: H35-00;

SMB6 format:

MSB LSB

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0000: CPU212, CPU222;

0010: CPU214, CPU224;

0110: CPU221; 1000: CPU215;

1001: CPU216, CPU226, CPU226XM;

1110: H35-00

Reserved

SMB8 to SMB21: I/O module and error register

SMB8 to SMB21 are prepared in byte pair form (two adjacent bytes) for extension modules 0 to 6.

The even-bit byte of each pair of bytes is the module identification register, and the odd-bit byte

is the module error register. The former marks the module type, I/O type, input and output points;

while the latter is the I/O error detected against corresponding module. Detailed description is

shown in the following table:

SM address

Function description(read only)

SMB8

Module 0 identification register

SMB9

Module 0 error register

SMB10

Module 1 identification register

SMB11

Module 1 error register

SMB12

Module 2 identification register

SMB13

Module 2 error register

SMB14

Module 3 identification register

SMB15

Module 3 error register

SMB16

Module 4 identification register

SMB17

Module 4 error register

SMB18

Module 5 identification register

SMB19

Module 5 error register

SMB20

Module 6 identification register

SMB21

Module 6 error register

Even byte (module ID register) format:

Main Page

COTRUST CTH200 Series - Page 334

Table of Contents