MCD221

MOTOROLA

2–4

Audio Output Interface

Mnemonic

Type

Name and Function

CLOUT

O

Audio Output Serial Clock.

WSOUT

O

Audio Output Word Clock.

DAOUT

O

Audio Output Serial Data.

General

Mnemonic

Type

Name and Function

SYS_CLK_OUT

O

16.9344 MHz System Clock Output.

SYSCLK2

I

Double System Clock Frequency Input. Input for an oscillator with a

frequency of 33.8688 MHz.

RESET

I

Reset. Global reset for the CIAP. Active LOW.

ISEL

I

Interface Select.

0 = Serial interface (no parallel access possible)

1 = 68000 interface (no serial access possible)

TDI

I

Test Data Input. (Boundary scan input pin.)

TDO

O

Test Data Output. (Boundary scan output pin.)

TCK

I

Test Clock. (Boundary scan input pin.)

TMS

I

Test Mode Select. (Boundary scan input pin.)

TESTMODE

O

When 0, the CIAP is operational. When 1, the CIAP is in test mode.