HMS81032TL datasheet(60/77 Pages) HYNIX

60 / 77 page

HMS81004E/08E/16E/24E/32E

JUNE 2001 Ver 1.00

Release Factor

Release Method

RESETB

By RESETB Pin=Low level, Standby mode is releas and system is initialized

KSCN(Key Input)

Standby mode is released by low input of selected pin by key scan Input(SMRR0,SMRR1).

In case of interrupt mask enable flag= “0”, program executes just after standby instruction,

if flag= “1” enters each interrupt service routine.

INT1,INT2

When external interrupt (INT1,INT2)

enable flag is “1”, standby mode is released at the

rising edge of each terminal. When standby mode is released at interrupt. Mask Enable

flag= “0”, program executes from the next instruction of standby instruction. When “1”,

enters each interrupt service routine.

Basic Interval

Timer(IFBIT)

When B.I.T. is executed only by bit10 of prescaler(PS10), SLEEP mode can be released.

Interrupt release SLEEP mode , when BIT interrupt enable flag is “1”. When standby mode

is released at interrupt. Mask enable flag= “0”, program executes from the next instruction

of SLEEP instruction. When “1”, enters each interrupt service routine.

Table 15-2

Figure 15-2 Block Diagram of Standby Circuit

[SLEEP MODE]

Xin

SLEEP command

SLEEP mode

release by interrupt

RESET

Longer than 2 machine cycle

[STOP MODE]

Xin

STOP mode

release by interrupt

RESET

Stable OSC.time

Program setting time by CKCTLR

Longer than stabe OSC. Time

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