Z89175 Datasheet, PDF (11/68 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
Z89175/Z89176
Voice Processing Controllers
Table 4. Z89176 100-Pin VQFP Pin Identification
Pin Number
Direction
Function
2
1, 51, 86, 95
Digital Ground
3, 14, 45, 75
99
Input/Output
Digital V_CC = +5V
Analog Voltage Ref+
100
Analog VDD
2
Output
PWM Output
4, 5
Output
DSP User Output 1, 0
6
Output
Address Strobe
7
Output
Data Strobe
8
Output
Read/Write
9
No Connection
10-13
Input/Output
Port 5 Bit 7-4
15
Output
Crystal Output (20.48 or 29.49 MHz)
16
Input
Crystal Input (20.48 or 29.49 MHz)
17, 18
Input/Output
Port 5 Bit 3-2
19-22
Output
Port 3 Bit 7-4
23-25
Input
Port 3 Bit 3-1
26
Input/Output
Reset
27-34
Input/Output
Port 2, Bit 0-7
35-42
Input/Output
Port 4, Bit 0-7
43, 44
Input/Output
Port 5, Bit 0-1
46-50
No Connection
52
Input
Crystal Input (32.768 kHz)
53
Output
Crystal Output (32.768 kHz)
54-74
No Connection
76, 77
No Connection
78-85
Input/Output
Port 0, Bit 7-0
87-94
Input/Output
Port 1, Bit 7-0
96
Analog GND
97
Input
Analog Voltage Ref-
98
Input
Analog Input
DS97TAD0100
PRELIMINARY
11