Panasonic KX-TCD540NZM Service Manual page 127

Pin Description
No
124 AD3
125 AD4
126 AD5
127 AD6
128 AD7
27. CPU DATA (CORDLESS HANDSET)
27.1. IC1 (BBIC)
Pin Description
No
1 P3_7/PD7
2 P3_1/PD1
3 P3_5/PD5
4 P3_4/PD4
5 P3_3/PD3
6 P3_2/PD2
7 VDD
8 VSS
9 RFCLK
10 VDDRF
11 VSSRF
12 Xtal1
13 CAP
14 AVS
15 AVD
16 RSSI
17 RDI
18 CMPREF
19 TDO
20 LE
21 SO
22 SK
23 DAC/ADC2
24 P3_6/PD6
25 UTX/P0_0
26 URX/P0_1
I/O Connection
D.O AD3
D.O AD4
D.O AD5
D.O AD6
D.O AD7
I/O Connection
D,O LCD_A0
D,O RXDSG
D,O SPAMP CD
D,I/O MIDI ERQ
D,O PAON
D,O PSEL
-
-
D,O SYRI
-
-
A,I
A,I
-
-
A,I RSSI
D,I RXDA
A,I
A,O TXDA
D,O SYEN
D,O SYDA
D,O SYCL
D,I JACK DETECTION
D,I/O MIDI_SRQ
D,O UTX
D,I URX
127
at Normal mode
O
O
O
O
O
at Normal mode
O
O
O
O
O
-
-
O
-
-
-
-
NC OPEN
A,O
D,O
D,O
D,O
O
at Reset mode
O-Hi
O-Hi
O-Hi
O-Hi
O-Hi
at Reset mode
O
O
O
I O
O
O
- -
- -
O
- -
- -
I O
I O
- -
- -
I O
I O
O
O
O
O
O
I O
I O
O
I O