Sylvania 6842PE M, Service Manual, Page: 56 / 82

1-12-1 L0604PIN
IC PIN FUNCTIONS
IC205 (PDP Micro Controller)
Pin
No.
Signal Name Function
1 PROTECT2 Power Supply Protection
2 PROTECT1 Power Supply Protection
3 NU Not Used
4 POWER-SW Power ON key
5 NU Not Used
6 NU Not Used
7 NU Not Used
8 NU Not Used
9 NU Not Used
10 NU Not Used
11 NU Not Used
12 BUSY Busy
13 CLK Clock Input
14 TXD
Main/Sub processor interface
transmit
15 RXD
Main/Sub processor interface
receive
16 UART-OPEN
Main/Sub processor interface
permit
17 NU Not Used
18 CNVSS
Switching Chip Operation
Mode
19 RESET Input Reset Signal
20 NU Not Used
21 NU Not Used
22 X-IN Clock Input
23 X-OUT Clock Output
24 VSS VSS
25 NU Not Used
26 S-SW0 Detecting S-Video 0 Signal
27 S-SW1 Detecting S-Video 1 Signal
28 AUDIO-SW2 Switching Audio 2
29 AUDIO-SW1 Switching Audio 1
30 AUDIO-SW0 Switching Audio 0
31 A-OUT-MUTE Mute Control
32 A-MUTE Mute Control
33 NU Not Used
34 NU Not Used
35 NU Not Used
36 SD SD Detection
37 NU Not Used
38 RESET-181 Reset PW181
39 REMOTE Receive Remote
40 NU Not Used
41 NU Not Used
42 NU Not Used
43 NU Not Used
44 NU Not Used
45 NU Not Used
46 BUS2-OPEN I2C Interface Permit
47 SDA
I2C-BUS Controller Interface
(Data)
48 SCL
I2C-BUS Controller Interface
(Clock)
49 NU Not Used
50 NU Not Used
51 NU Not Used
52 NU Not Used
53 NU Not Used
54 P-OFF-RQ Power OFF Request
55 P-OFF-H Power OFF Detect
56 P-ON-H Output for P-ON-H
57 VCC VCC
58 VREF
Standard Voltage Input for
Convert AD
59 AVSS GND for Convert AD
60 NU Not Used
61 NU Not Used
62 NU Not Used
63 NU Not Used
64 P-DET D+3.3V Power Detect
Pin
No.
Signal Name Function