7477 datasheet(36/48 Pages) RENESAS

Part #	7477

Description	SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

PDF	48 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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36 / 48 page

MITSUBISHI MICROCOMPUTERS

7477/ 7478 GROUP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

STP instruction preparation (pushing registers)

↓

Timer 3, timer 4 interrupt disable

↓

X/16 or XC/16 selected for timer 3 count source; timer 3 overflow selected for timer 4 count source

↓

Timer 3, timer 4 start counting

↓

Values set to timer 3, timer 4 that do not cause timer 4 to overflow until STP instruction is executed

↓

Interrupt for return from STP enabled

↓

Timer 4 interrupt request bit cleared

↓

Clock X and clock for clock function XC halt (STP instruction)

RAM backup status

Interrupts from INT0, INT1, CNTR0/CNTR1, timer 1, timer 2, serial I/O, key on wake up

↓

Clock X and clock for clock function XC oscillation start

↓

Timer 4 overflow (X/16 or XC/16

→timer 3→timer 4)

↓

Internal system clock start

↓

Program start from interrupt vector

Normal program

7477 Datasheet(PDF) 36 Page - Renesas Technology Corp