參數(shù)資料
型號: EM78P5841
廠商: ELAN Microelctronics Corp .
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): 25/48頁
文件大?。?/td> 469K
代理商: EM78P5841
EM78P5840/5841/5842
8-bit Micro-controller
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to change without notice.
2004/11/10 V2.6
IOCD (TONE1 control, Clock source, Prescaler of CN1)
PAGE0 (Reserved)
PAGE1 (Clock source and prescaler for COUNTER1)
7
6
5
CNTI/ES
X
X
R/W-0
R/W-0
R/W-0
Bit 0 ~ Bit 2 (C1_PSC0 ~ C1_PSC2) : COUNTER1 prescaler ratio
C1_PSC2
C1_PSC1
C1_PSC0
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
Bit 3(CNT1S) : COUNTER1 clock source. This bit will un-effect on RC mode (RC mode’s CLK is always
equal to oscillator frequency).
0/1
16.384kHz / system clock.
4
X
3
2
1
0
CNT1S
R/W-0
C1_PSC2
R/W-0
C1_PSC1 C1_PSC0
R/W-0
R/W-0
R/W-0
COUNTER1
1:2
1:4
1:8
1:16
1:32
1:64
1:128
1:256
0
1
0
1
0
1
0
1
Fig 7: Timer CLK source diagram
Bit4 ~ Bit6: Unused register. These three bits are not allowed to use.
Bit7 (CNTI/ES):Counter source select.
CNTI/ES = 0
Timer counter CLK come from system CLK or Crystal output and P94 is defined to
general propose IO.
CHTI/ES = 1
P94 is defined to input and Timer counter’s CLK will come from P94’s falling edge.
IOCE (Interrupt mask,)
PAGE0 (Interrupt mask)
7
6
5
4
3
PWM2
0
ADI
PWM1
X
R/W-0
R/W-0
R/W-0
R/W-0
-
Bit 0 ~ Bit 3 : unused
Bit 4(PWM1) : PWM1 one period reach interrupt mask.
Bit 5 (ADI) : ADC conversion complete interrupt mask
0/1
disable/enable interrupt
There are four registers for A/D converter. Use one bit of interrupt control register (IOCE PAGE0 Bit5) for
2
X
-
1
X
-
0
X
-
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