Z8932120FSC ZILOG [Zilog, Inc.], Z8932120FSC Datasheet - Page 3

• Manufacturer Part Number: Z8932120FSC
• Description: 16-BIT DIGITAL SIGNAL PROCESSORS
• Manufacturer: ZILOG [Zilog, Inc.]

Zilog
PIN DESCRIPTION
No.
1-3
4
5
6-7
8
9-11
12
13-14
15
16-17
18
19
20
21
22
DS97DSP0100
Table 1. Z89321/371 40-Pin DIP Pin IdentiÞcation
Symbol
EXT12-
EXT14
V
EXT15
EXT3-EXT4 External Data
V
EXT5-EXT7 External Data
TXD
EXT8-EXT9 External Data
V
EXT10-
EXT11
UI1
UI0
SCLK
V
RD//WR
SS
SS
SS
DD
Function
External Data
Bus
Ground
External Data
Bus
Bus
Ground
Bus
Serial Output to
CODECs
Bus
Ground
External Data
Bus
User Input
User Input
CODEC Serial
Clock
Power Supply
Strobes for
External Bus
Figure 2. Z89321/371 40-Pin DIP Pin Assignments
EXT12
EXT13
EXT14
EXT15
EXT10
EXT11
SCLK
EXT3
EXT4
EXT5
EXT6
EXT7
EXT8
EXT9
VSS
VSS
TXD
VSS
Direction
Input/Output
Input/Output
Input/Output
Input/Output
Output
Input/Output
Input/Output
Input
Input
Input/Output*
Input
Output
UI1
UI0
P R E L I M I N A R Y
1
20
DIP 40 - Pin
No.
23
24-26
27
28
29
30
31
32-33
34
35
36-38
39
40
Notes:
*Input/Output is defined by interface mode selection.
HALT/WAIT pins not available on 40-pin DIP package.
Table 1. Z89321/371 40-Pin DIP Pin IdentiÞcation
21
40
Symbol
/RESET
EA0-EA2
V
/DS
CLK
FS0
/INT0
UO0-UO1
FS1
V
EXT0-EXT2 External Data
V
RXD
DD
SS
SS
RXD
VSS
EXT2
EXT1
EXT0
VSS
FS1
U01
U00
/INT0
FS0
CLK
/DS
VDD
EA2
EA1
EA0
/RESET
RD//WR
VDD
Function
Reset
External Address
Bus
Power Supply
Data Strobe for
External Bus
Clock
CODEC 0 Frame
Sync
Interrrupt
User Output
CODEC 1 Frame
Sync
Ground
Bus
Ground
Serial Input from
CODECs
16-Bit Digital Signal Processors
Z89321/371/391
Direction
Input
Output
Input
Output
Input
Input/Output*
Input
Output
Input/Output*
Input/Output
Input
3
1