ZiLOG
Z02205
Modem Controller
PIN DESCRIPTION
Table 1. Z02205 Pin Identification
Pin #
1–3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19–21
22
23
24–28
Symbol
D5–D7
DPRD
DPWR
DPRESET
MUTE
V
CC
XTAL2
XTAL1
DPIRQ
RINGDET
DTR
DCD
SHUNT
TxD
OH
RxD
A0–A2
GND
DPCS
D0–D4
Function
DSP Register Data Lines 5 through 7
Data Pump Read
Data Pump Write
Data Pump Reset
Speaker Mute
Power Supply
Crystal Oscillator
Crystal Oscillator
Data Pump Interrupt Request
Ring Detect Input
Data Terminal Ready
Data Carrier Detect
Pulse Dial Shunt Relay Output
Data Transmit
Off Hook Relay Output
Data Receive
DSP Register Address Lines 0 through 2
Ground
Data Pump Chip Select
DSP Register Data Lines 0 through 4
Output
In/Output
Output
Input
Input
Input
Input
Output
Output
Output
Output
Input
Output
Direction
In/Output
Output
Output
Output
Output
PS001000-MOD0599
3
ZILOG [ ZILOG, INC. ]
