參數(shù)資料
型號(hào)： EM78450
英文描述： Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0&degC to 70°C; Package: 16-QFN
中文描述： 8位微控制器的通用產(chǎn)品
文件頁(yè)數(shù)： 3/57頁(yè)
文件大?。?/td> 854K
代理商： EM78450
EM78458/459
MASK ROM
This specification is subject to change without prior notice.
2002/03/01
11
An 8-bit general-purpose register.
13. RE
A 2-bit, Bit 0 and Bit 1 register.
14. RF (Interrupt Status Register)
7
6
5
4
3
2
1
0
-
CMPIF
PWM2IF
PWM1IF
ADIF
EXIF
ICIF
TCIF
“1” means interrupt request, and “0” means no interrupt occurs.
Bit 0 (TCIF) TCC overflow interrupt flag. Set when TCC overflows, reset by software.
Bit 1 (ICIF) Port 6 input status change interrupt flag. Set when Port 6 input changes, reset by
software.
Bit 2 (EXIF) External interrupt flag. Set by falling edge on /INT pin, reset by software.
Bit 3 (ADIF) Interrupt flag for analog to digital conversion. Set when AD conversion is completed,
reset by software.
Bit 4 (PWM1IF) PWM1 (Pulse Width Modulation) interrupt flag. Set when a selected period is
reached, reset by software.
Bit 5 (PWM2IF) PWM2 (Pulse Width Modulation) interrupt flag. Set when a selected period is
reached, reset by software.
Bit 6 (CMPIF) High-compared interrupt flag. Set when a change occurs in the output of Comparator,
reset by software.
Bit 7 Unemployed, read as ‘0’;
RF can be cleared by instruction but cannot be set.
IOCF0 is the interrupt mask register.
Note that to read RF will result to "logic AND" of RF and IOCF0.
15. R10 ~ R3F
All of these are 8-bit general-purpose registers.
4.2 Special Purpose Registers
1. A (Accumulator)
Internal data transfer, or instruction operand holding
It can not be addressed.
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