Ic8 ( Usb Chip ); Ic9 ( Comparators ); Ic10 ( Reset Ic ) - Panasonic KX-P7100 Service Manual

KX-P7100
7.6.

IC8 ( USB Chip )

IC8 (USB Chip)
Pin
Symbol
No.
1 NC1
2 RESET
3 nSTROBE
4 BUSY
5 D0
6 D1
7 D2
8 D3
9 VCC1
10 GND1
11 D4
12 D5
13 D6
14 D7
15 VCP
16 D+
17 D-
18 VCC2
19 GND2
20 NC2
7.7.

IC9 ( Comparators )

7.8.

IC10 ( Reset IC )

In/Out Function
- N.C.
In System Reset signal
Out Strobe signal
In Busy signal
Out Parallel data0
Out Parallel data1
Out Parallel data2
Out Parallel data3
- +5V
- GND
Out Parallel data4
Out Parallel data5
Out Parallel data6
Out Parallel data7
Out +3.3V output
In/Out USB differential data +
In/Out USB differential data -
- +5V
- GND
- N.C.
IC9 (Comparators)
Pin
Symbol
No.
1 A OUTPUT
2 A -INPUT
3 A +INPUT
4 GND
5 B+INPUT
6 B -INPUT
7 B OUTPUT
8 VCC
IC10 (Reset IC)
Pin
Symbol
No.
1 GND
2 VDD
3 CD
4 RESET
Pin
Symbol
No.
21 NC3
22 NC4
23 X2
24 X1
25 NC5
26 PLH
27 NC6
28 nACK
29 CS
30 SK
31 VCC3
32 GND3
33 DI
34 DO
35 nFAULT
36 SELECT
37 PERR
38 nINT
39 nAUTOFD
40 nSELECTIN
In/Out Function
Out Comparator A Output
Comparator A-Input
In
Comparator A+Input
In
GND
-
Comparator B+Input
In
Comparator B-Input
In
Comparator B Output
Out
- +5V
In/Out Function
GND
-
+5V
-
Delay Capacitor
-
Out Reset Signal
92
In/Out Function
- N.C.
- N.C.
- N.C.
In System clock
- N.C.
- N.C.
- N.C.
In Acknowledge signal
- (not used)
- (not used)
- +5V
- GND
- (not used)
- (not used)
In Fault signal
In Select signal
In Paper end signal
Out Initial signal
Auto Feed signal
Out
Out Select In siganl