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Z89321 Datasheet(PDF) 5 Page - Zilog, Inc.

Part # Z89321
Description  16-Bit Digital Signal Processors
PDF  40 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z89321 Datasheet(HTML) 5 Page - Zilog, Inc.

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Z89321/371/391
Zilog
16-Bit Digital Signal Processors
DS97DSP0100
P R E L I M I N A R Y
5
1
Table 2. Z89321/371 44-Pin PLCC Pin IdentiÞcation
No.
Symbol
Function
Direction
1
HALT
Stop Execution
Input
2
FS0
CODEC 0 Frame Sync
Input/Output*
3
/INT0
Interrupt
Input
4-5
O0-UO1
User Output
Output
6
FS1
CODEC 1 frame sync
Input/Output*
7VSS
Ground
8-10
EXT0-EXT2
External data bus
Input/Output
11
VSS
Ground
12
RXD
Serial input from CODECs
Input
13-15
EXT12-EXT14
External data bus
Input/Output
16
VSS
Ground
17
EXT15
External data bus
Input/Output
18-19
EXT3-EXT4
External data bus
Input/Output
20
VSS
Ground
21-23
EXT5-EXT7
External data bus
Input/Output
24
TXD
Serial output to CODECs
Output
25-26
EXT8-EXT9
External data bus
Input/Output
27
VSS
Ground
28-29
EXT10-EXT11
External data bus
Input/Output
30
/INT2
Interrupt
Input
31
/INT1
Interrupt
Input
32
UI1
User input
Input
33
UI0
User input
Input
34
SCLK
CODEC serial clock
Input/Output*
35
VDD
Power supply
Input
36
RD//WR
RD//WR strobe for EXT bus
Output
37
WAIT
WAIT state
Input
38
/RESET
Reset
Input
39-41
EA0-EA2
External Address bus
Output
42
VDD
Power Supply
Input
43
/DS
Data strobe for external bus
Output
44
CLK
Clock
Input
Note: * Input or output is defined by interface mode selection.



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