參數(shù)資料
型號: HCD404669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 50/142頁
文件大?。?/td> 894K
代理商: HCD404669
HD404669 Series
50
Bit
Initial value
Read/Write
Bit name
3
0
W
DCD03,
DCD23
2
0
W
DCD02,
DCD22
0
0
W
DCD00–
DCD10
1
0
W
DCD01–
DCD21
DCD0 to DCD2
Data control register
(DCD0 to 2: $02C to $02E)
(DCR0 to 4, DCR6 to A: $030 to $034, $036 to $03A)
Bit
Initial value
Read/Write
Bit name
Note: Other bits are not used.
3
0
W
DCR03–
DCR43
2
0
W
DCR02–
DCR42
0
0
W
DCR00–
DCR40
1
0
W
DCR01–
DCR41
DCR0 to DCR4
DCR6 to DCRA
DCR61– DCR60–
DCRA1
DCR62–
DCR92
DCR63–
DCR93
DCRA0
All Bits CMOS Buffer Control
0
CMOS buffer Off (high-impedance)
1
CMOS buffer active
Correspondence between ports and DCD/DCR bits
Register Name
Bit 3
Bit 2
Bit 1
Bit 0
DCD0
D
3
D
2
D
1
D
0
DCD1
D
5
D
4
DCD2
D
11
D
10
D
9
DCR0
R0
3
R0
2
R0
1
R0
0
DCR1
R1
3
R1
2
R1
1
R1
0
DCR2
R2
3
R2
2
R2
1
R2
0
DCR3
R3
3
R3
2
R3
1
R3
0
DCR4
R4
3
R4
2
R4
1
R4
0
DCR6
R6
3
R6
2
R6
1
R6
0
DCR7
R7
3
R7
2
R7
1
R7
0
DCR8
R8
3
R8
2
R8
1
R8
0
DCR9
R9
3
R9
2
R9
1
R9
0
DCRA
RA
RA
0
Figure 29 Data Control Registers (DCD, DCR)
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HCD404899 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
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