參數(shù)資料
型號: HT48R50A
廠商: Holtek Semiconductor Inc.
元件分類: 數(shù)學處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 24/46頁
文件大小: 1037K
代理商: HT48R50A
HT48R50A-1
Rev. 1.10
24
July 2, 2001
ROM code option
The following table shows all kinds of ROM code option in the microcontroller. All of the ROM code
options must be defined to ensure proper system functioning.
No.
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 (By bit)
6
PA CMOS/SCHMITT input
7
PA, PB, PC, PD, PG pull-high enable/disable (By port)
8
BZ/BZ enable/disable
9
LVR enable/disable
10
System oscillator
Ext. RC, Ext. crystal, Int. RC+RTC or Int. RC+PG1/PG2
11
Int. RC frequency selection 3.2MHz, 1.6MHz, 800kHz or 400kHz
12
Lock: unlock/lock
3 D 3
(
D 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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