Multitone RPR 561, Technical Manual

Page: 70 / 109

RPR 561
TM1200 Issue 1 Page 5 - 21
PIN No. CCT REF DESCRIPTION
1 INT4 DATA INTERRUPT (INPUT)
2 PO1 EEPROM CLOCK OUTPUT
3 PO2 DATA OUT
4 PO3 DATA IN
5 P10 SYNC DETECT(INT0) (INPUT)
6 P11 SWITCH/TIMER INTERRUPT (INPUT)
7 P12 /TONE.Rx DETECT
8 P13 SAMPLING CLOCK INPUT
9 P20 E (DISPLAY DATA CLOCK) OUTPUT
10 P21 RS (DISPLAY REGISTER SELECT) OUTPUT
11 P22 PTT ENABLE:LOW DURING SPEECH (OUT)
12 P23 /LINE KEY TEST (OUTPUT) (TP103)
13 P30 /TX KEY (OUTPUT)
14 P31 /SQUELCH OUTPUT
15 P32 UNUSED
16 P33 /SPEECH ENABLE OUTPUT
17 P40 DB4 (DISPLAY) (N/CH OPEN DRAIN)
18 P41 DB5 (DISPLAY) (N/CH OPEN DRAIN)
19 P42 DB6 (DISPLAY) (N/CH OPEN DRAIN)
20 P43 DB7 (DISPLAY) (N/CH OPEN DRAIN)
21 P50 /DISPLAY POWER (N/CH OPEN DRAIN)
22 P51 SBY (N/CH OPEN DRAIN)
23 P52 /BACKLIGHT ON (N/CH OPEN DRAIN)
24 P53 EEPROM RESET LO
6
HI (UNUSED) (N/CH OPEN DRAIN)
25 P60 SWITCH INPUT ROW 1
26 P61 SWITCH INPUT ROW 2
27 P62 SWITCH INPUT ROW 3
28 P63 SWITCH INPUT ROW 4
29 P70 SWITCH INPUT COL 1
30 P71 SWITCH INPUT COL 2
31 P72 SWITCH INPUT COL 3
32 P73 SWITCH INPUT COL 4
33 VDD VDD
34 XT1 SUB SYSTEM CLOCK OSCILLATOR (GROUNDED & UNUSED)
35 XT2 SUB SYSTEM CLOCK OSCILLATOR (NOT CONNECTED)
36 IC1 IC1 (CONNECTED TO VDD)
37 X1 OSCILLATOR INPUT
38 X2 OSCILLATOR OUTPUT
39 /RESET /RESET INPUT
40,100 VSS VSS
41 P80 SWITCH 1 INPUT
42 P81 UNUSED
43 P82 PREAMBLE DETECT INPUT
44 P83 LOW BATTERY INPUT
45 P90 UNUSED OUTPUT
46 P91 PTT PRESSED IN SIMPLEX (IN)
47 P92 DTMF OUT (TGO0)
48 P93 LONE WORKER IN/OUT (UNUSED)
49 AVSS ANALOGUE GROUND (UNUSED)
50 IC2 (GROUNDED & UNUSED)
Table 5: Microprocessor (IC101) Pin Connections