Z89323 Datasheet, PDF (8/61 Pages) Zilog, Inc. – 16-BIT DIGITAL SIGNAL PROCESSORS

PRELIMINARY
Z89323/373/393
16-BIT DIGITAL SIGNAL PROCESSORS
PIN DESCRIPTION (Continued)
Table 4a. 80-Pin QFP Z89323/373 Pin Description
No. Symbol
Function
Direction No. Symbol
Function
Direction
1 NC
No Connection
2 EXT15/P015 ExtData15/Port015
3 /EXTEN
Ext Enable
4 NC
No Connection
5 EXT3/P03
Ext Data 3/Port 0 3
6 P32
Port3 2
7 EXT4/P04
Ext Data 4/Port 0 4
8
V_SS
9
V_DD
10 EXT5/P05
Ground
Power
Ext Data 5/Port 0 5
11 P13/SOUT
12 EXT6/P06
13 P14/SS
14 EXT7/P07
15 P15/SK
16 P27
17 EXT8/P08
18 EXT9/P09
19 V
SS
20 P33
Port 1 3/Serial Output
Ext Data 6/Port 0 6
Port 1 4/Serial Select
Ext Data 7/Port 0 7
Port 1 5/Serial Clock
Port 2 7
Ext Data 8/Port 0 8
Ext Data 9/Port 0 9
Ground
Port 3 3
In/Output
Input
In/Output
Input
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
Input
41 RD//WR
42 P35
43 NC
44 HALT
45 EA0
46 P36
47 EA1
48 EA2
49 NC
50 V_DD
51 P23/UO1
52 /DS
53 P24/UO2
54 CLKI
55 CLKO
56 P26
57 P22/UO0
58 P25/UI2
59 WAIT
60 P37
R/W External Bus
Port 3 5
No Connection
Halt Execution
Ext Address 0
Port 3 6
Ext Address 1
Ext Address 2
No Connection
Power
Port 2 3/User Output 1
Ext Data Strobe
Port 2 4/User Output 2
Clock/Crystal In
Clock/Crystal Out
Port 2 6
Port 2 2/User Output 0
Port 2 5/User Input 2
Wait for Ext
Port 3 7
Output
Output
Input
Output
Output
Output
Output
In/Output
Output
In/Output
Input
Input
In/Output
In/Output
In/Output
Input
Output
21 EXT10/P010 ExtData10/Port010
22 V
SS
23 NC
Ground
No Connection
24 P34
Port 3 4
25 EXT11/P011 ExtData11/Port011
26 V
DD
27 VAHI
Power
Analog High Ref.
28 V
SS
29 P16/UI0
Ground
Port 1 6/User Input 0
30 VAL0
Analog Low Ref.
In/Output
Output
In/Output
Input
In/Output
Input
61 /RES
62 V
SS
63 V
DD
64 NC
65 V
SS
66 P30
67 EXT0/P00
68 EXT1/P01
69 EXT2/P02
70 P10/INT2
Reset
Ground
Power
No Connection
Ground
Port 3 0
Ext Data 0/Port 0 0
Ext Data 1/Port 0 1
Ext Data 2/Port 0 2
Port 1 0/Interrupt 2
Input
Input
In/Output
In/Output
In/Output
In/Output
31 P17/UI1
32 ANGND
33 AN0
34 AN1
35 AN2
36 AN3
37 V
SS
38 P21/INT1
39 ANVCC
40 V
DD
Port 1 7/User Input 1
Analog Ground
A/D Input 0
A/D Input 1
A/D Input 2
A/D Input 3
Ground
Port 2 1/Interrupt 1
Analog Power
Power
In/Output
Input
Input
Input
Input
Input
In/Output
Input
Input
71 V
Ground
SS
72 P11/CLKOUT Port11/ClockOutput
73 P12/SIN
Port 1 2/Serial Input
74 P20/INT0
Port 2 0/Interrupt 0
75 EXT12/P012 ExtData12/Port012
76 EXT13/P013 ExtData13/Port013
77 V
Power
DD
78 EXT14/P014 ExtData14/Port014
79 V
SS
80 P31
Ground
Port 3 1
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
Input
8
DS95DSP0101 Q4/95