Sanyo EP58B specifications LC8632/34/38/3A Series Ntsc

TV Control Microcontrollers

LC8632/34/38/3A Series (NTSC)

Overview

The LC8632/LC8634/LC8638/LC863A Series are closed caption TV control 8-bit microcontrollers that integrate an extensive set of peripheral functions around a CPU core that operates with a minimum cycle time of 0.424 ∝s. The peripheral functions include 16 to 64 KB of program ROM, 16 KB of CGROM, 384 to 640 bytes of RAM, 352 9 bits of CRT display RAM, as well as 16-bit timer/ counter, PWM, A/D converter, I2C bus compatible serial interface, closed caption data slicer, and closed caption OSD circuits.

These microcontrollers can implement TV control and closed caption display in a single chip.

Functions

OSD function

· Screen display: 36 characters 16 lines (supported in software)

· Number of characters: 252 characters in a 16 32 dot font (Of these, 4 characters including one test character are fixed.) · Simple graphics function (A font in which a single character is 16 16 dots and can be painted with 4 colors)

I2C bus multi-master serial interface: One built-in circuit with two sets of pins Flash memory versions are available for each series and allow onboard programming

Block Diagram

TV Control Microcontrollers

LC8633/35/3BXX Series (PAL)

Overview

The LC8633/LC8635/LC863BXX Series are TV control 8-bit microcontrollers that integrate an extensive set of peripheral functions around a CPU core that operates with a minimum cycle time of 0.424 ∝s. The peripheral functions include 16 to 64 KB of program ROM, 16 KB of CGROM, 384 or 512 bytes of RAM, 176 or 352 9 bits of CRT display RAM, and two 16-bit timer/counter circuits, as well as PWM, A/D converter, I2C bus compatible serial interface, and OSD circuits.

These microcontrollers can implement TV control in a single chip.

Functions

OSD function

· Screen display: 36 characters 8 lines (supported in software)

· Number of characters: 252 characters in a 16 32 dot font (Of these, 4 characters including one test character are fixed.) · Simple graphics function (A font in which a single character is 16 16 dots and can be painted with 4 colors)

I2C bus multi-master serial interface: One built-in circuit with two sets of pins Flash memory versions are available for each series and allow onboard programming

Block Diagram

Interrupt control

Standby control

X'tal	Clock generator
RC
VCO

PLL

IR	PLA
	ROM
	PC

Interrupt control

Standby control

X'tal	Clock generator
RC
VCO

PLL

IR	PLA
	ROM
	PC

I2C

SIO 0

Timer 0

Timer 1

Clock time base timer

ADC

INT0 to INT3

noise rejection filters

PWM

Data slicer

ROM correction control

XRAM

Bus

interface

Port 1

Port 6

Port 7

Port 8

OSD	CGROM
	control
control
circuit
	VRAM

ACC

Register B

Register C

ALU

PSW

RAR

RAM

Stack pointer

Port 0

Watchdog timer

LC8632 Series

I2C

SIO 0

Timer 0

Timer 1

Clock time base timer

ADC

INT0 to INT3

noise rejection filters

PWM

ROM correction control

XRAM

Bus

interface

Port 1

Port 6

Port 7

Port 8

	CGROM
OSD	control
control
circuit	VRAM

ACC

Register B

Register C

ALU

PSW

RAR

RAM

Stack pointer

Port 0

Watchdog timer

LC8633 Series

37 SANYO TV . VCR SANYO TV . VCR 38