參數(shù)資料
型號: SST89V54RD2-33-C-NJE
廠商: Microchip Technology
文件頁數(shù): 60/92頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 24KB FLASH 44PLCC
標準包裝: 26
系列: FlashFlex®
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,WDT
輸入/輸出數(shù): 36
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 8K x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 44-LCC
包裝: 管件
2011 Silicon Storage Technology, Inc.
DS25087A
10/11
63
FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
Not Recommended for New Designs
A Microchip Technology Company
This routine should not be part of an interrupt service routine. If the program counter goes astray and
gets stuck in an infinite loop, interrupts will still be serviced and the watchdog will keep getting reset.
Thus, the purpose of the watchdog would be defeated. Instead, call this subroutine from the main pro-
gram of the PCA timer.
Figure 29:PCA Watchdog Timer (Module 4 only)
1255 F28.0
CIDL
WDTE
CPS1
CPS0
ECF
ECOMn CAPPn CAPNn
MATn
TOGn
PWMn ECCFn
CMOD
CCAPM4
Reset
CH
CL
CCAP4H
CCAP4L
PCA Timer/Counter
0
0X
0
16-bit Comparator
Reset
Write to
CCAP4L
Write to
CCAP4H
10
Enable
Match
Module 4
1X
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