Z89175 Datasheet, PDF (9/68 Pages) Zilog, Inc. – Voice Processing Controllers

Zilog
I/O Port
Symbol
GND
V_CC
VREF+
ANV_DD
PWM
DSP1-0
/AS
/DS
R//W
NC
P57-P54
XTAL2
XTAL1
P53-P52
P37-P34
P33-P31
/RESET
P20-P27
P40-P47
P50-P51
NC
OSC1
OSC2
NC
NC
P07-P00
P17-P10
ANGND
VREF-
ANIN
Table 3. Z89176 100-Pin QFP Pin Identification
Z89175/Z89176
Voice Processing Controllers
Pin Number
Direction
Function
2
3, 53, 88, 97
Digital Ground
5, 16, 47, 77
Digital V_CC = +5V
1
Input/Output
Analog Voltage Ref+
2
Analog V_DD
4
Output
PWM Output
6, 7
Output
DSP User Output 1, 0
8
Output
Address Strobe
9
Output
Data Strobe
10
Output
Read/Write
11
No Connection
12-15
Input/Output
Port 5 Bit 7-4
17
Output
Crystal Output (20.48 or 29.49 MHz)
18
Input
Crystal Input (20.48 or 29.49 MHz)
19, 20
Input/Output
Port 5 Bit 3-2
21-24
Output
Port 3 Bit 7-4
25-27
Input
Port 3 Bit 3-1
28
Input/Output
Reset
29-36
Input/Output
Port 2, Bit 0-7
37-44
Input/Output
Port 4, Bit 0-7
45, 46
Input/Output
Port 5, Bit 0-1
48-52
No Connection
54
Input
Crystal Input (32.768 kHz)
55
Output
Crystal Output (32.768 kHz)
56-76
No Connection
78-79
No Connection
80-87
Input/Output
Port 0, Bit 7-0
89-96
Input/Output
Port 1, Bit 7-0
98
Analog GND
99
Input
Analog Voltage Ref-
100
Input
Analog Input
DS97TAD0100
PRELIMINARY
9