參數(shù)資料
型號: HT48C50-
廠商: Holtek Semiconductor Inc.
元件分類: 數(shù)學(xué)處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 23/45頁
文件大小: 295K
代理商: HT48C50-
HT48C50-1
23
June 14, 2000
Preliminary
Mask option
The following table shows all kinds of mask option in the microcontroller. All of the mask options
must be defined to ensure proper system functioning.
Items
Option
1
WDT clock source: WDTOSC/f
TID
/RTCOSC/disable
2
CLRWDT instructions: 1 or 2 instructions
3
Timer/event counter 0 clock sources: f
SYS
or RTCOSC
4
Timer/event counter 1 clock sources: f
SYS
/4 or RTCOSC
5
PA wake-up
6
PA, PB, PC, PD CMOS/SCHMITT input
7
PA, PB, PC, PD, PG pull-high enable/disable
8
BZ/BZ enable/disable
9
LVR enable/disable
10
LVR voltage: 2.2V or 3.3V
11
System oscillator
Ext. RC, Ext.crystal, Int.RC+RTC or Int.RC+PC3/PC4
12
Int.RC frequency selection 3.2MHz, 1.6MHz, 800kHz or 400kHz
2 E 2
(
E 5
! * #
!
H
H
* "
! #
!
( * ! ! *!
Low voltage reset
Note: *1:Tomakesurethatthesystemoscillatorhasstabilized,theSSTprovidesanextradelayof
1024 system clock pulses before entering the normal operation.
*2:Sincelowvoltagehastobemaintainedinitsoriginalstateandexceed1ms,therefore1ms
delay enters the reset mode.
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