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Chapter 7 MICROCONTROLLER
7.2 Pin Assignment
7.1 Description
B/G
The CXP85220 and CXP85224 are the CMOS 8-bit single chip1 PAVD64 VDD
microcontroller which features its basic configuration of an 8-bit CPU, ROM,D/K2 PANC 63 NC
I3 PAVS62 GND
RAM and I/O ports with additional on-chip peripheral circuits including
2M 4 PAM61 MP
functions of on-screen display, IC bus interface, PWM output, remote control
S.SOUND SW 5 PAPWM0/P60 U/V
reception, A/D converter, watch-dog timer etc., which are ideally suited for
AUDIO SW6 PAPWM1/P59 L/H
TV systems.
GREEN LED7 PAPWM2/P58 VOLUME
The CXP85224 and CXP85220 also provide a power-on reset functionRED LED8 PAPWM3/P57 PIC ROT
2
and a sleep function that enables lower power consumption. For BG2T,AGC 9 PBSCL0/PWM4/56 I C CLK 0
2
CXP85220 is used for PG21N70 (Taiwan/Philippine), and PG14N70 (Taiwan/VM MUTE 10 PBSCL1/PWM5/55 I C CLK 1
2
SP MUTE11 PBSDA0/PWM6/S54 I C DAT 0
Philippine). CXP85224 can be applied for all BG2T models (except NTSC
2
BLK 12 PBSDA1/PWM7/53 I C DAT 1
models).
13 PBBL52 YS
FeaturesSECAM TRAP 14 PBR 51 R
B-INT15 PBG 50 G
- ROM : CXP85224 : 24K bytes
MO MUTE 16 PBB 49 B
CXP85220 : 20K bytes
V PULSE 17 PCVSYN48 V SYNC
- ROM : 448 bytesMODE SW018 PCHSYN47 H SYNC
MODE SW119 PCEXL46 EXLC
- Speed : 1 ?sec at 4MHz operation (for the shortest intruction)
SAP IND20 PCXL45 XLC
2
-IC bus I/F: 2 channelsSTEREO IND 21 PCINT0/P44 VDD
F SAP22 PCINT1/P43
- Timer: 8 bit x 2 channels
FORCED 23 PCAN0/P42 BRT ABL
- Watch-dog Timer
24 PCAN1/P41 KEY1
H SYNC 25 PD7/EAN2/P40 KEY2
- OSD : 128 characters
SIRCS 26 PD6/RMAN3/P39
12 x 16 dots per character
HD SW 27 PD5/APWM/P38 VC
21 characters x 2 lines
28 PD4/HIT0/PE37
- Remote control receptionITT RESET29 PD3/RS36 RESET
STBY 30 PD2/SEXTA35 EXTAL
- Package : 64 pin plastic SDIP
31 PD1/SCXTA34 XTAL
GND32 VSINT2/P33 BINTRDY
Figure 7.1- Pin Assignment of CXP85220 and CXP85224 |
ACEC
