Rev.1.00

Mar 08, 2005

page 1 of 1

REJ03B0145-0100

M3776AM8H/MCH/MFH-XXXGP

REJ03B0145-0100

Rev.1.00

Mar 08, 2005

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

1. DESCRIPTION

This microcomputer is a single-chip microcomputer that adopts a

high-performance silicon gate CMOS process, and is contained in

a 100-pin plastic mold QFP. This single-chip microcomputer is pro-

vided with an instruction queue buffer and a data buffer for

executing instructions at high speed. The central processing unit

runs in a 16-bit parallel processing mode but can be converted

into an 8-bit parallel processing mode when necessary. This prod-

uct has been designed exclusively for video equipment system

controls, incorporating a time measuring circuit for VCR servo

control, a real-time pattern generating circuit, analog amplifiers, an

OSD display circuit, and a data slicer, among its many other pe-

ripheral capabilities.

1.1 FEATURES

●Number of basic instructions ................................................. 103

●Memory size

RAM ............ M3776AM8H-XXXGP:2048bytes

M3776AMCH-XXXGP:2560bytes

M3776AMFH-XXXGP:3072bytes

ROM ............ M3776AM8H-XXXGP:64kbytes

M3776AMCH-XXXGP:96kbytes

M3776AMFH-XXXGP:120kbytes

●Instruction execution time

(fastest instruction, 16 MHz high-speed mode) ................ 250 ns

(fastest instruction, 12 MHz double-speed mode)

........................................................................................... 167 ns

●Single power source

In 16 MHz high-speed mode

(OSD/data slicer off) ............................................... 4.0 V to 5.5 V

(OSD/data slicer on) ........................................... 4.75 V to 5.25 V

In 12 MHz double-speed mode

(OSD/data slicer off) .............................................. 4.0 V to 5.5 V

(OSD/data slicer on) ........................................... 4.75 V to 5.25 V

In 32 kHz low-speed mode

(OSD/data slicer off) ............................................... 2.6 V to 5.5 V

●OSD power source ............................................. 4.75 V to 5.25 V

●Interrupt ......................................................... 23 factors, 6 levels

●16-bit timer .................................................................................. 3

●8-bit timer .................................................................................... 3

●Clock-synchronous serial I/O ..................................................... 2

(one of which can perform automatic 64-byte transfers)

●8-bit A/D converter...........1 unit (11 channel inputs)

●8-bit D/A converter ...................................................................... 2

●12/14-bit PWM ............................................................................ 2

●14-bit PWM ................................................................................. 1

●Time measurement circuit (TMT)

One counter for measuring time to generate input signals

DRFG, CPFG, CPPG, VSYNG, and GEN

One counter for measuring time to generate input signals RLS

and RLT

●Remote-control noise filter (majority of 4 samplings)

●Real-time pattern (RTP) generation circuit

Outputs real-time pattern to exterior, RECCTL signal to CTL

head control circuit, trigger for start the A/D converter, trigger for

starting OSD vertical display

●Amplification circuits

CTL head control circuit, CTL amplifier, CTL schmidt circuit,

drum PG circuit, drum FG circuit, capstan FG circuit, capstan

FG amplifier circuit

●Pulse duty detection circuit (VISS and VASS signal detection

features embedded) Measures PBCTL signal duty ratio.

●Synchronous signal separation circuit

●EOR output feature (HASW, CROT) .......................... 2-bit output

●Watchdog timer

●Programmable I/O ports ........................................................... 69

●Input ports ................................................................................. 10

●4 Embedded clock-generating circuits

●ROM correction function included

●OSD function

Display characters ................................ 32 characters ✕ 16 lines

Kinds of characters ...................... Composite Output 254 kinds

RGB Output 285 kinds

Kinds of character sizes .................................................... 8 kinds

Output method ........ Composite video signal, RGB output (PAL,

MPAL, NTSC, NPAL)

Special function ...................... Display with background shadow

(button display)

On-chip sync correct circuit (AFC)

●Data slicer

On-chip slicer for XDS

1.2 APPLICATION

VCR, TVCR