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General Purpose I/O Interface

The General Purpose I/O (GPIO) interface gives access to the status of all I/Os available in the Coaxlink boards. It also allows the user to control the ‘User Output Register’.

For more information on the General Purpose I/O and the User Output Register, please refer to the Coaxlink Functional Guide and the Coaxlink Hardware Manual.

接口信号

信号

 Width

指令

描述
user_output_ctrl 16 输出

Control the User Output Register:

□ Ctrl[1:0] => UserOutput0
□ Ctrl[3:2] => UserOutput1
□ Ctrl[5:4] => UserOutput2
□ Ctrl[7:6] => UserOutput3
□ Ctrl[9:8] => UserOutput4
□ Ctrl[11:10] => UserOutput5
□ Ctrl[13:12] => UserOutput6
□ Ctrl[15:14] => UserOutput7

Each UserOutput register can be controlled independently. The ‘Ctrl’ fields are encoded as follows:

□ “01” => UserOutputx <= ‘1’
□ “10” => UserOutputx <= ‘0’
□ Others => No change

Each ‘Ctrl’ field is evaluated only once every time a change in the field is detected. It means that a UserOutput state can be changed via the Coaxlink Driver API even if the corresponding ‘Ctrl’ field is constantly forced to “01”.
user_output_status 8 输入

User Output Register status:

□ Status[0] => UserOutput0
□ Status[1] => UserOutput1
□ Status[2] => UserOutput2
□ Status[3] => UserOutput3
□ Status[4] => UserOutput4
□ Status[5] => UserOutput5
□ Status[6] => UserOutput6
□ Status[7] => UserOutput7
standard_io_set1_status 10 输入

Standard I/O set #1 status:

□ Status[0] => DIN11
□ Status[1] => DIN12
□ Status[2] => IIN11
□ Status[3] => IIN12
□ Status[4] => IIN13
□ Status[5] => IIN14
□ Status[6] => IOUT11
□ Status[7] => IOUT12
□ Status[8] => TTLIO11
□ Status[9] => TTLIO12
standard_io_set2_status 10 输入

Standard I/O set #2 status:

□ Status[0] => DIN21
□ Status[1] => DIN22
□ Status[2] => IIN21
□ Status[3] => IIN22
□ Status[4] => IIN23
□ Status[5] => IIN24
□ Status[6] => IOUT21
□ Status[7] => IOUT22
□ Status[8] => TTLIO21
□ Status[9] => TTLIO22
module_io_set_status 40 输入

I/O Extension Module status:

□ Status[0] => MIO1
□ Status[1] => MIO2
□ …
□ Status[39] => MIO40

© 2019 EURESYS s.a.  -  关于文档  -  Coaxlink 12.1.1.2097