參數(shù)資料
型號: EM78P451SP
廠商: ELAN Microelctronics Corp .
英文描述: 8-Bit Microcontroller with OTP ROM
中文描述: 8位微控制器的OTP ROM的
文件頁數(shù): 18/54頁
文件大?。?/td> 421K
代理商: EM78P451SP
EM78P451S
8-Bit Microcontroller with OTP ROM
14
Product Specification (V1.0) 06.01.2004
(This specification is subject to change without further notice)
Bit 1 (EXIE)
EXIF interrupt enable bit.
0: disable EXIF interrupt
1: enable EXIF interrupt
Bit 0 (TCIE)
TCIF interrupt enable bit.
0: disable TCIF interrupt
1: enable TCIF interrupt
Oscillator
Enable
Disable
Reset
Q
D
Q
CLK
C
L
P
R
Clear
from S/W
Set
4
/WUE
/WUE
/WUE
VCC
P60~P67
VCC
/WUE
P74~P75, P90~P91
/PHEN
8
Fig. 5 Block Diagram of Sleep Mode and Wake-up Circuits on I/O Ports
4.3 TCC/WDT Presacler
An 8-bit counter is available as prescaler for the TCC or WDT. The prescaler is
available for either the TCC or WDT only at any given time, and the PAB bit of CONT
register is used to determine the prescaler assignment. The PSR0~PSR2 bits
determine the prescale ratio. The prescaler is cleared each time the instruction is
written to TCC under TCC mode. The WDT and prescaler, when assigned to WDT
mode, are cleared by the WDTC or SLEP instructions. Fig. 6 depicts the circuit
diagram of TCC/WDT.
R1(TCC) is an 8-bit timer/counter. TCC will increase by one at every instruction
cycle (without prescaler).
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