Pin No. I/O Setting Pull-up
Processing
Contents of Control Remark
1 X1 I - not inuse Connecting to Vcc
2 X2 O - not inuse Open
3 Vss - GND
4 OSC2 O - Open
5 OSC1 I - 8 MHz clock from 8.192MHz ASIC
6 TEST I - not inuse Connecting to Vcc
7 Vcc - Power terminal +3.3V
8 Reset/ I - Reset input Low active
9 P20/IRQ4 I Built-in OP-Rx-Rdy
10 P21/SCK1 O - not inuse
11 P22/SI1 I Built-in OP_Busy/ Low active
12 P23/SO1 O - not inuse
13 P24/SCK3 O Built-in OP_SCK
14 P25/RxD I Built-in OP_RXD
15 P26/TxD O - OP_TXD
16 P27/IRQ0 I (out) OP-Tx-En
17 P17/IRQ3 I Built-in Hook detection/ L:OFF-HOOK
18 P16/IRQ2 I Built-in GA_RxINT/ Low active
19 P15/IRQ1 I/O Built-in KEYOUT0
20 P14 I/O Built-in KEYOUT1
21 P13/TMIG I/O Built-in KEYOUT2
22 P12/TMOFH I/O Built-in KEYOUT3
23 P11/TMOFL I/O Built-in KEYOUT4
24 P10/TMOW O - not inuse
25 PA3 I/O (out) KEYOUT5
26 PA2 O - REN/ Low active
27 PA1 O - WEN/ Low active
28 P50/WKP0 I Built-in KEY-IN0
25
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