Radio Shack PRO-197, Руководство по обслуживанию, Страница: 72 / 75

72
MICROPROCESSOR (IC307) PORT FORMAT
Pin Pin Pin
Number Function Number Function Number Function
1
Tri-Color LED D/A output
35
DSP Comms and Pin 12 74LV595A out
68
Power Save output
2
Tri-Color LED D/A output
36
DSP Comms and Pin 14 74LV595A out
69
Select DG Audio output
3
High Speed Data input
37
DSP Comms output
70
PLL Clock output
4
WX Alert input
38
DSP Comms input
71
PLL Data output
5
Low Speed Data input
39
Boot input
72
Select FM Audio output
6
BYTE input (GND)
40
DSP Comms and Pin 11 74LV595A out
73
EEPROM SDA output
7
CNVSS input (Pull down)
41
DSP-LD Ready input
74
PLL LE output
8
NC
42
DSP-LD 9600-Det input
75
PLL LD input
9
Voltage Regulator Control
43
DSP-LD ES-Det input/output
76
Shift Registor CLK output
10
Reset input
44
NC (Pull down)
77
Shift Registor A output
11
X-Out
45
DSP LD output
78
Signal Sweeper Control output
12
VSS
46
DSP Reset output
79
Signal Sweeper SQ2 input
13
X-in
47
Keyboard input
80
Signal Sweeper Search Control output
14
VCC1
48
Keyboard input
81
SQ1 input
15
NC (Pull up)
49
Keyboard input
82
AM Narrow Filter Select output
16
NC (Pull down)
50
Keyboard input
83
3rd OSC Control B output
17
Hold input
51
Keyboard input
84
Mute output
18
Alert Tone output
52
Keyboard input
85
Select AM Audio output
19
LCD RS output
53
DSP Sleep output
86
3rd OSC Control A output
20
Beep Tone output
54
DSP Wake output
87
Signal Sweeper Scan Control output
21
LCD CSB output
55
Keyboard output
88
Tri-Color LED output
22
Beep Tone output
56
Keyboard output
89
Tri-Color LED output
23
LCD SI output
57
Keyboard output
90
Tri-Color LED output
24
LCD SCL output
58
Keyboard output
91
Tri-Color LED output
25
LCD Reset output
59
Keyboard output
92
Low Battery Voltage A/D input
26
LCD Back Light output
60
VCC2
93
Zeromatic Voltage A/D input
27
WX Same Data input
61
Keyboard output
94
AVSS
28
Key Back Light output
62
VSS
95
RSSI A/D input
29
PC/IF output
63
DSP-LD RX-DG input
96
V REF
30
PC/IF input
64
External On input
97
AVCC
31
NC (Pull down)
65
Battery Charge output
98
Pocket/Mobile Select input
32
NC
66
Hiss Reduction output
99
NC (Pull up)
33
PC/IF output
67
NBFM Audio + 6 dB output
100
EEPROM SCL output
34
PC/IF input