HD404354 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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HD404354 Datasheet PDF : 100 Pages
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HD404358 Series
Data control register (DCD0 to 2: $02C to $02E)
(DCR0 to 4: $030 to $034, DCR8: $038)
DCD0, DCD2, DCR0 to DCR4, DCR8
Bit
3
2
1
0
Initial value
0
0
0
0
Read/Write
W
W
W
W
Bit name
DCD03, DCD02, DCD01, DCD00–
DCD13, DCD12, DCD11, DCD20,
DCR03– DCR02– DCR01– DCR00–
DCR43, DCR42, DCR41, DCR40,
DCR83 DCR82 DCR81 DCR80
Bits 0 to 3
0
1
CMOS Buffer On/Off Selection
Off (high-impedance)
On
Correspondence between ports and DCD/DCR bits
Register Name
Bit 3
Bit 2
DCD0
DCD1
DCD2
D3
D7
Not used
D2
D6
Not used
DCR0
DCR1
DCR2
DCR3
DCR4
DCR8
R03
R02
R13
R12
R23
R22
R33
R32
R43
R42
R83
R82
Bit 1
D1
D5
Not used
R01
R11
R21
R31
R41
R81
Figure 21 Data Control Registers (DCD, DCR)
Bit 0
D0
D4
D8
R00
R10
R20
R30
R40
R80
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