參數(shù)資料
型號: EM78568
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-BIT MICRO-CONTROLLER for FRS
中文描述: 8位微控制器為FRS
文件頁數(shù): 25/54頁
文件大?。?/td> 494K
代理商: EM78568
EM78568
8-bit Micro-controller for FRS
__________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice.
07/28/2004 V3.5
VDD
V1
V2
VLCD
VDD
V1
V2
VLCD
Frame
COM0
COM1
VDD
V1
V2
VLCD
VDD
V1
V2
VLCD
SEG
SEG
dark
light
Fig.9 Type1’s LCD waveform for 1/3 bias, 1/2 duty
(Type0 is no longer available in this mask version)
PAGE1 (Comparator control register)
7
6
CMPEN
CMPS1
R/W-0
R/W-0
If user define CMP1/P63 pin, CMP2/P64 pin or CMP3/P65 pin (by CMPIN1, CMPIN2, CMPIN3 at IOCE page1)
as CMP1, CMP2 pin or CMP3 pin (comparator’s input pins), user can use this register to control comparator's
function.
Bit 0 ~ Bit 4 (CMP_B0 ~ CMP_B4) : Reference voltage selection of internal bias resistor string
Voltage = VR x ( n + 0.5 )/ 32 , n=0 to 31. Set RB bit 6 (VREF) to select VR = VREG or 2.0V
Bit 5 ~ Bit 6 (CMPS0 ~ CMPS1) : Comparator’s channel selection bits from CMP1 to CMP3
Bit 7(CMPEN) : Enable bit of the comparator circuit
0/1
disable/enable the comparator circuit
CMPS1
CMPS0
Input
0
0
CMP1
0
1
CMP2
1
0
CMP3
1
1
Reserved
5
4
3
2
1
0
CMPS0 CMP_B4 CMP_B3 CMP_B2 CMP_B1 CMP_B0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
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