21LF-90H (serv.man3) - Sharp TV Service Manual (repair manual). Page 14

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CHASSIS
ST92195
The ST92195 is a member of the ST9+ family of micro-controllers, completely developed and produced by
STMicroelectronics using a proprietary n-well HCMOS process. The nucleus of the ST92195 is the advanced Core,
which includes the Central Processing Unit (CPU), the ALU, the Register File and the interrupt controller. The Core has
independent memory and register buses to add to the efficiency of the code. A set
of on-chip peripherals form a complete system for TV set and VCR applications:
– Voltage Synthesis
– VPS/WSS Slicer
– Teletext Slicer
– Teletext Display RAM
– OSD
Additional peripherals include a watchdog timer , a serial peripheral interface (SPI), a 16-bit timer and an A/D converter.
                   
g
g
INT7/P2.0
RESET
P0.7
P0.6
P0.5
P0.4
P0.3
AIN4/P0.2
P0.1
P0.0
CSO/RESET0/P3.7
P3.6
P3.5
P3.4
B
G
R
FB
SDA1/SDI/SDO/P5.1
SCL1/SCK/INT2/P5.0
V
DD
JTDO
WSCF
V
PP
/WSCR
AVDD3
TEST0
MCFM
JTCK
P2.1/INT5/AIN1
P2.2/INT0/AIN2
P2.3/INT6/VS01
P2.4/NMI
P2.5/AIN3/INT4/VS02
OSCIN
OSCOUT
P4.7/PWM7/EXTRG/STOUT0
P4.6/PWM6
P4.5/PWM5/SDA2
P4.4/PWM4/SCL2
P4.3/PWM3/TSLU/HT
P4.2/PWM2
P4.1/PWM1
P4.0/PWM0
VSYNC
HSYNC/CSYNC
AVDD1
PXFM
JTRSTO
GND
AGND
CVBS1
CVBS2
JTMS
AVDD2
CVBSO
TXCF
1
2
3
4
5
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Figure 1. Microcontroller Pin Description
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