AM79C02AJC datasheet(30/48 Pages) AMD

30 / 48 page

Am79C02/03/031(A) Data Sheet

14. Read AISN, PCM Delay, and Analog Gains

(51h)

15. Write SLIC Output Register

(52h)

C1 through C5 are set to 1 or 0. The data appears latched on the C1 through C5 SLIC I/O pins,

provided they are set in the Output mode (see Command 17). The data sent to any of the pins

set to the Input mode are latched, but do not appear at the pins.

RSVD

Reserved. Always write as 0, but 0 is not guaranteed when read.

16. Read SLIC Pins

(53h)

The logic state of pins C1 through C5 is read regardless of the direction programmed into the

Input/Output register.

17. Write SLIC Input/Output Direction

(54h)

Pins C1x through C5x are set to input or output modes individually. Pins C51 and C52 are not

available on the Am79C03(A). C51 and C52 pins are output only on the Am79C031(A) and must

be programmed as outputs with this command. All unused SLIC I/O pins should be programmed

as outputs to reduce power consumption.

Data bit A sets pins C51 or C52.

Data bit B sets pins C41 or C42.

Data bit C sets pins C31 or C32.

Data bit D sets pins C21 or C22.

Data bit E sets pins C11 or C12.

Data bit = 0; Pin mode = Input.*

Data bit = 1; Pin mode = Output.

RSVD

Reserved. Always write as 0, but 0 is not guaranteed when read.

* Power up default value

Command

Output Data

PCD

Command

Input Data

RSVD

Command

Output Data

RSVD

Command

Input Data

RSVD

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AM79C02AJC 数据表(PDF) 30 Page - Advanced Micro Devices

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