Z89166 Zilog., Z89166 Datasheet - Page 8

• Manufacturer Part Number: Z89166
• Description: DTAD CONTROLLERS
• Manufacturer: Zilog.

PIN DESCRIPTION (Continued)
I/O Port
Functions
V
V
P00-P07
P10-P17
P20-P27
P31-P37
P40-P47
P50-P53
C_DIN
C_DOUT
C_CLOCK
C_ENA0
C_ENA1
PWM
DATA0
DATA1
DATA2
DATA3
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
ADDR5
ADDR6
ADDR7
ADDR8
ADDR9
ADDR10
ARAM_SEL0
ARAM_SEL1
/RAS
/CAS
ARAM_R/W
ARAM_/OE
XTAL1
XTAL2
ROMLESS
/Reset
R/W
/AS
/DS
8
Z
SS
CC
ILOG
Pin Number
32, 54, 65
12, 44, 74
43-36
55, 53-51, 49-46
2-9
57-63
77-84
70-67
76
75
73
72
71
56
26
27
28
29
13
14
15
16
17
18
19
20
21
22
23
24
25
30
31
34
33
11
10
45
35
50
64
1
Z89169/Z89167 84-Pin PLCC, Pin Identification
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input
Output
Output
Output
Output
Output
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
Input
Output
Input
InputOutput
Output
Output
Output
I/O
Function
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.)
Data input from CODEC.
Data output to CODEC.
CODEC clock (2.048 MHz)
CODEC 0 enable (8 kHz)
CODEC 1 enable (8 kHz)
Pulse Width Modulator 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.
24.57 MHz crystal input
24.57 MHz crystal output
Z8
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
®
Romless mode input (P0 and P1 are switched to D/A mode if
Z89165/166/167/168/169
CP96TAD0103
DTAD C
ONTROLLERS