HD404848FS datasheet(49/125 Pages) HITACHI

Part #	HD404848FS

Description	4-Bit Single-Chip Microcomputer

PDF	125 Pages

Scroll/Zoom	100%

Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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49 / 125 page

HD404849 Series

Bit

Initial value

Read/Write

Bit name

DCD03,

DCD02,

DCD00,

DCD01,

DCD0, DCD1

Data control register

(DCD0 to DCD2: $02C to $02E)

(DCR0 to DCR7: $030 to $037)

DCD13

DCD12

DCD10

DCD11

Bit

Initial value

Read/Write

Bit name

—

Not used

—

Not used

DCD20

—

Not used

DCD2

Bit

Initial value

Read/Write

Bit name

DCR03–

DCR02–

DCR00–

DCR01–

DCR0 to DCR3, DCR6, DCR7

DCR33

DCR32

DCR30

DCR31

DCR73

DCR72

DCR70

DCR71

DCR63– DCR62–

DCR60–

DCR61–

Correspondence between ports and DCD/DCR bits

DCD0

DCD1

DCD2

DCR0

DCR1

DCR2

DCR3

DCR6

DCR7

Off (high-impedance)

All Bits

CMOS Buffer On/Off Selection

—

R03

R13

R23

R33

R63

R73

Bit 3

—

R02

R12

R22

R32

R62

R72

Bit 2

—

R01

R11

R21

R31

R61

R71

Bit 1

R00

R10

R20

R30

R60

R70

Bit 0

Figure 29 Data Control Registers (DCD, DCR)

HD404848FS Datasheet(PDF) 49 Page - Hitachi Semiconductor

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