HT9580 datasheet(14/63 Pages) HOLTEK

номер детали	HT9580

подробное описание детали	Character Pager Controller

PDF	63 Pages

Scroll/Zoom	100%

производитель	HOLTEK [Holtek Semiconductor Inc]

домашняя страница	http://www.holtek.com

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14 / 63 page

HT9580

April 28, 2000

Preliminary

timer overflow and RTC_FG is an indicator for

the RTC time out interrupt request flag. The

OR_FG will be set high when an out-of-range

status from low to high or high to low transition

occurrs. Those flags such as TM0OVFG,

TM1OVFG, BF_FG, DR_FG, OR_FG and

RTC_FG should be cleared by the software af-

ter they are activated.

RTCEN

RTC counter is

enabled

RTC counter is

disabled

RTCMSK

RTC interrupt

is masked

RTCinterruptis

not masked

TM0IMSK

Timer 0 overflow

interrupt is

masked

Timer0overflow

interruptisnot

masked

TM1IMSK

Timer 1

overflow

interrupt is

masked

Timer 1

overflow

interrupt is not

masked

ORMSK

Out-of-range

interrupt is

masked

Out-of-range

interrupt is not

masked

TM0OVFG Timer 0

overflows

No timer 0

overflow

TM1OVFG Timer 1

overflows

No timer 1

overflow

WDTOVFG

Watchdog

timer has

overflown

No watchdog

timer overflow

BF_FG

Battery fail

request

No battery fail

request

DR_FG

Data ready

request

No data ready

request

OR_FG

Out-of-range

request

No out-of-range

request

RTC_FG

RTC interrupt

request

No RTC

interrupt

request

TM 0 / 1O V FG

RT C_ F G

T M 0/ 1I M S K

NM I

IR Q

OR _ F G

OR M S K

RT C M S K

M 6 502

Co r e

D a t a R e ady

B a tte r y F a i l

SP I R e q s t

Block diagram of NMI and IRQ

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