參數(shù)資料
型號: HT49C50
廠商: Holtek Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 20/52頁
文件大?。?/td> 318K
代理商: HT49C50
HT49C50
20
August 18, 1999
To guarantee that the system oscillator is started
and stabilized, the SST (System Start-up Timer)
provides an extra-delay of 1024 system clock
pulses when the system awakes from the HALT
state or during power up. Awaking from the
HALT state or system power-up, the SST delay is
added.
An extra SST delay is added during the
power-up period, and any wake-up from the
HALT may enable only the SST delay.
The functional unit chip reset status is shown
below.
PC
000H
Interrupt
Disabled
Prescaler, Divider
Cleared
WDT, RTC, Time
base
Cleared. After master
reset, WDT starts
counting
Timer/event
counter
Off
Input/output ports
Input mode
SP
Points to the top of the
stack
*
, & &
: -
.
Reset timing chart
%
&
>
%
&
: -
+
* 9
*
< 0
+
B :& /
: A. <
-
% +
Reset configuration
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