User's Manual

TC-700 CPU Pins
15
CPU Pins
1. CPU pins are as follows:
No. MCU Port Name Port Name Input/Output Features
1 P94/DA1 APC/TV O Automatic Power Control
2 P93/DA0 TONEO O
DTMF/2-5Tone/Beep tone output/ ALARM
tone output
3 P92/TB2IN NC O NC
4 P91 O
5 P90 SHIFT O Clock beat-frequency
6 BYTE BYTE I
7 CNVSS CNVSS I
8 P87/XCIN O
9 P86/XCOUT O
10 RESET RESET I Input low level to enter all reset mode
11 XOUT XOUT O Crystal oscillator output pin
12 VSS GND I GND
13 XIN XIN I Crystal oscillator output pin
14 VCC VCC I VCC
15 P85/NMI NMI I
16 P84/INT2 AFCK I 2346 TCLK
17 P83/INT1 AUX1 O Indication for external scrambler
18 P82/INT0 AFRDF I 2346 RDF
19 P81 O
20 P80 PTTCO O PTTCO
21 P77 NC O
22 P76/TA3O CTCOUT O CTC _OUT (PWM) TO VCO
23 P75 NC O
24 P74/TA2O CTC_PLL O CTC_PLL (PWM)
25 P73 AUX2 COM5 Indication for receive/transmit status
26 P72/TA1O 1/2OSC O
27 P71/RxD2/TB5IN TONEI O
28 P70/TxD2
29 P67/TxD1 TXD O Serial date output.
30 P66/RxD1 RXD I Serial date input.
31 P65 I
32 P64 O
33 P63/TxD0 I COM4 MANDOWN Input Pin
34 P62/RxD0 O COM3