Z89165 Datasheet, PDF (8/22 Pages) Zilog, Inc. – DTAD CONTROLLERS

Z89165/166/167/168/169
ZILOG
DTAD CONTROLLERS
PIN DESCRIPTION (Continued)
Z89169/Z89167 84-Pin PLCC, Pin Identification
I/O Port
Functions Pin Number
I/O
Function
V
SS
V
CC
P00-P07
P10-P17
P20-P27
P31-P37
P40-P47
P50-P53
32, 54, 65
12, 44, 74
43-36
55, 53-51, 49-46
2-9
57-63
77-84
70-67
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Digital Ground
Digital VCC = +5 V
P00-P07 (General-purpose nibble programmable I/O port.)
P10-P17 (General-purpose byte programmable I/O port.)
P20-P27 (General-purpose bit programmable I/O.)
P31-P37 (General-purpose I/O port. Bits P31-P33 are inputs, while
bits P34-P37 are outputs.)
P40-P47 (General-purpose bit programmable I/O.)
P50-P53 (General-purpose bit programmable I/O.)
C_DIN
76
C_DOUT
75
C_CLOCK 73
C_ENA0
72
C_ENA1
71
Input
Output
Output
Output
Output
Data input from CODEC.
Data output to CODEC.
CODEC clock (2.048 MHz)
CODEC 0 enable (8 kHz)
CODEC 1 enable (8 kHz)
PWM
56
Output
Pulse Width Modulator output
DATA0
26
DATA1
27
DATA2
28
DATA3
29
ADDR0
13
ADDR1
14
ADDR2
15
ADDR3
16
ADDR4
17
ADDR5
18
ADDR6
19
ADDR7
20
ADDR8
21
ADDR9
22
ADDR10
23
ARAM_SEL0 24
ARAM_SEL1 25
/RAS
30
/CAS
31
ARAM_R/W 34
ARAM_/OE 33
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Data 0 I/O of the ARAM Interface
Data 1 I/O of the ARAM Interface
Data 2 I/O of the ARAM Interface
Data 3 I/O of the ARAM Interface
Address 0 line of the ARAM Interface
Address 1 line of the ARAM Interface
Address 2 line of the ARAM Interface
Address 3 line of the ARAM Interface
Address 4 line of the ARAM Interface
Address 5 line of the ARAM Interface
Address 6 line of the ARAM Interface
Address 7 line of the ARAM Interface
Address 8 line of the ARAM Interface
Address 9 line of the ARAM Interface
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.
Select 0 output of ARAM Interface. Used to switch between
different pages of ARAM.
Select 1 output of ARAM Interface. Used to switch between
different pages of ARAM.
Row Address Strobe of ARAM Interface.
Column Address Strobe of ARAM Interface.
Read/Write Strobe of ARAM Interface.
Output Enable Strobe of ARAM Interface.
XTAL1
11
XTAL2
10
Input
Output
24.57 MHz crystal input
24.57 MHz crystal output
ROMLESS 45
/Reset
35
R/W
50
/AS
64
/DS
1
Input
InputOutput
Output
Output
Output
Z8^® Romless mode input (P0 and P1 are switched to D/A mode if
this pin is connected to VCC). Internally this pin is tight to GND.
/RESET input/output
Z8 external memory interface R/W output
Z8 external memory interface /AS output
Z8 external memory interface /DS output
8
CP96TAD0103