Z89167 datasheet(6/22 Pages) ZILOG

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Z89165/166/167/168/169

DTAD CONTROLLERS

CP96TAD0103

ZILOG

PIN DESCRIPTION (Continued)

Z89168 84-Pin PLCC Pin Identification

I/O Port

Functions

Pin Number

I/O

Function

32, 54, 65

Digital Ground

12, 44, 74, 45

Digital VCC = +5 V

P00-P07

43-36

Input/Output

P00-P07 (General-purpose nibble programmable I/O port.)

P10-P17

55, 53-51, 49-46

Input/Output

P10-P17 (General-purpose byte programmable I/O port.)

P20-P27

2-9

Input/Output

P20-P27 (General-purpose bit programmable I/O.)

P31-P37

57-63

Input/Output

P31-P37 (General-purpose I/O port. Bits P31-P33 are inputs, while

bits P34-P37 are outputs.)

P40-P47

77-84

Input/Output

P40-P47 (General-purpose bit programmable I/O.)

P50-P53

70-67

Input/Output

P50-P53 (General-purpose bit programmable I/O.)

C_DIN

Input

Data input from CODEC.

C_DOUT

Output

Data output to CODEC.

C_CLOCK

Output

CODEC clock (2.048 MHz)

C_ENA0

Output

CODEC 0 enable (8 kHz)

C_ENA1

Output

CODEC 1 enable (8 kHz)

PWM

Output

Pulse Width Modulator output

DATA0

Input/Output

Data 0 I/O of the ARAM Interface

DATA1

Input/Output

Data 1 I/O of the ARAM Interface

DATA2

Input/Output

Data 2 I/O of the ARAM Interface

DATA3

Input/Output

Data 3 I/O of the ARAM Interface

ADDR0

Output

Address 0 line of the ARAM Interface

ADDR1

Output

Address 1 line of the ARAM Interface

ADDR2

Output

Address 2 line of the ARAM Interface

ADDR3

Output

Address 3 line of the ARAM Interface

ADDR4

Output

Address 4 line of the ARAM Interface

ADDR5

Output

Address 5 line of the ARAM Interface

ADDR6

Output

Address 6 line of the ARAM Interface

ADDR7

Output

Address 7 line of the ARAM Interface

ADDR8

Output

Address 8 line of the ARAM Interface

ADDR9

Output

Address 9 line of the ARAM Interface

ADDR10

Output

Address 10 line of the ARAM Interface for 4 Meg ARAMs. Select 2

output of ARAM Interface for 1 Meg ARAMs support. The latter

mode is used to switch between different pages of ARAM.

ARAM_SEL0

Output

Select 0 output of ARAM Interface. Used to switch between

different pages of ARAM.

ARAM_SEL1

Output

Select 1 output of ARAM Interface. Used to switch

between

different pages of ARAM.

/RAS

Output

Row Address Strobe of ARAM Interface.

/CAS

Output

Column Address Strobe of ARAM Interface.

ARAM_R/W

Output

Read/Write Strobe of ARAM Interface.

ARAM_/OE

Output

Output Enable Strobe of ARAM Interface.

XTAL1

Input

24.57 MHz crystal input

XTAL2

Output

24.57 MHz crystal output

/Reset

Input

/RESET input

R/W

Output

Z8® external memory interface R/W output

/AS

Output

Z8 external memory interface /AS output

/DS

Output

Z8 external memory interface /DS output

Z89167 Datasheet(PDF) 6 Page - Zilog, Inc.

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