参数资料
型号: SDA20C440
厂商: SIEMENS A G
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQFP80
封装: PLASTIC, MQFP-80
文件页数: 9/55页
文件大小: 990K
代理商: SDA20C440
SDA 20C440
Semiconductor Group
17
Interrupt Registers:
Default after reset:
XXXX XXX0
IEA: = 1
enable all Interrupts
IENA2.1 – IENA2.7: reserved, to be set to 0
Default after reset:
XXXX X000
IE2: = 1
enable Timer Interrupt
IE1: = 1
enable External Interrupt
IE0: = 1
enable Serial Port Interrupt
IENA0.3 – IENA0.7: reserved, to be set to 0
Default after reset:
XXXX XXXX
INT2: = 1
Timer Interrupt is requested
INT1: = 1
External Interrupt is requested
INT0: = 1
Serial Port Interrupt is requested
IREQ0.3 – IREQ0.7: reserved, to be set to 0, if writing to IREQ0
MSB
SFR-Address: C9H
LSB
IENA2: Global Interrupt Enable Register
...
IEA
MSB
SFR-Address: C8H
LSB
IENA0: Interrupt Enable Register 0
...
IE2
IE1
IE0
MSB
SFR-Address: A8H
LSB
IREQ0: Interrupt Request Register
...
INT2
INT1
INT0
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