Z89371 Zilog., Z89371 Datasheet - Page 9
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Z89371
Manufacturer Part Number
Z89371
Description
16-Bit Digital Signal Processors
Manufacturer
Zilog.
Datasheet
1.Z89371.pdf
(40 pages)
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Zilog
No. Symbol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
DS97DSP0100
Table 4. Z89391 84-Pin PLCC Pin IdentiÞcation
RXD
EXT12
PA4
EXT13
PA5
EXT14
PA6
V
PA7
EXT15
/PA_EN
/EXTEN
EXT3
PA8
EXT4
PA9
V
EXT5
PA10
EXT6
PA11
EXT7
TXD
PA12
EXT8
PA13
EXT9
V
PA14
EXT10
PA15
V
V
PD0
EXT11
PD1
INT2
PD2
INT1
PD3
UI1
UI0
SS
SS
SS
DD
SS
Function
Serial Input from CODEC
External Data 12
Program Address 4
External Data 13
Program Address 5
External Data 14
Program Address 6
Ground
Program Address 7
External Data 15
Prog. Mem. Address Enable Input
Ext. Bus Enable
External Data 3
Program Address 8
External Data 4
Program Address 9
Ground
External Data 5
Program Address 10
External Data 6
Program Address 11
External Data 7
Serial Output to CODEC
Program Address 12
External Data 8
Program Address 13
External Data 9
Ground
Program Address 14
External Data 10
Program Address 15
Power Supply
Ground
Program Data 0
External Data 11
Program Data 1
User Interrupt 2
Program Data 2
User Interrupt 1
Program Data 3
User Input 1
User Input 0
Direction
Input
In/Output
Output
In/Output
Output
In/Output
Output
Output
In/Output
Input
In/Output
Output
In/Output
Output
In/Output
Output
In/Output
Output
In/Output
Output
Output
In/Output
Output
In/Output
Output
In/Output
Output
Input
Input
In/Output
Input
Input
Input
Input
Input
Input
Input
P R E L I M I N A R Y
No. Symbol
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
72
73
74
75
76
77
78
79
80
81
82
83
84
Note: *Input or output is defined by interface mode selection.
71 PD14
Table 4. Z89391 84-Pin PLCC Pin IdentiÞcation
SCLK
V
RD//WR
PD4
WAIT
PD5
/RESET
PD6
EA0
PD7
V
/ROMEN
EA1
PD8
EA2
PD9
V
PD10
/DS
CLK
PD11
HALT
FS0
INT0
PD12
UO0
PD13
UO1
FS1
PD15
V
V
PA0
V
EXT0
PA1
EXT1
PA2
EXT2
PA3
V
DD
DD
DD
SS
DD
SS
SS
Function
CODEC Interface Clock
Power Supply
R/W External Bus
Program Data 4
Wait State Input
Program Data 5
Reset
Program Data 6
External Address 0
Program Data 7
Power Supply
ROM Enable
External Address 1
Program Data 8
External Address 2
Program Data 9
Power Supply
Program Data 10
External Data Strobe
Clock
Program Data 11
Stop Execution
Frame Synch for CODEC
Interface 0
User Interrupt 0
Program Data 12
User Output 0
Program Data 13
User Output 1
Program Data 14
Frame Synch for CODEC
Interface 1
Program Data 15
Ground
Power Supply
Program Address 0
Ground
External Data 0
Program Address 1
External Data 1
Program Address 2
External Data 2
Program Address 3
Ground
16-Bit Digital Signal Processors
Z89321/371/391
Direction
In/Output
Input
Output
Input
Input
Input
Input
Input
Output
Input
Input
Input
Output
Input
Output
Input
Input
Input
Output
Input
Input
Input
In/Output
Input
Input
Input
Input
Input
Input
In/Output
Input
Input
Output
In/Output
Output
In/Output
Output
In/Output
Output
9
1