UPD17708 datasheet(41/356 Pages) NEC

No. de pieza	UPD17708

Descripción Electrónicos	4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM

PDF	356 Pages

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Fabricante Electrónico	NEC [NEC]

Página de inicio	http://www.nec.com/

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µPD17704, 17705, 17707, 17708, 17709

Figure 4-2. Configuration of Data Memory (3/3)

(c)

µPD17704, 17705

Note

An identical system register exists.

Cautions 1. The

µPD17704 and 17705 do not have BANKs 6 through 14.

2. Nothing is allocated to addresses 00H through 5FH of BANK15.

System registers

BANK0

Data memory

BANK1

Column address

General registers

System registers (SYSREG)Note

Example

Address 51H

of BANK 0

b3 b2 b1 b0

7 Port register

System registers (SYSREG)Note

123456789 A B C D E F

BANK2

BANK5

BANK15

23456789 A B C DE F

Data buffer

0123456789 A B C DE F

Column address

Fixed to 0

0123456789 A B C DE F

BANK0

Column address

BANK1-BANK3

Column address

BANK4, BANK5

Column address

BANK15

Port register

Fixed to 0

Port input/output selection registers

UPD17708 Datasheet(PDF) 41 Page - NEC

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