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UPD17015GS Datasheet(PDF) 33 Page - NEC

Part # UPD17015GS
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR PORTABLE RADIOS
PDF  120 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17015GS Datasheet(HTML) 33 Page - NEC

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µPD17015
Fig. 8-2 Configuration of the Data Buffer
0
123
45
6
789
A
B
C
D
E
F
Data buffer (DBF)
Data memory
System register
0
1
2
3
4
5
6
7
Data memory
Address
0CH
0DH
0EH
0FH
Bit
b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0
b3 b2 b1 b0
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4
b3 b2 b1 b0
Data buffer
DBF3
DBF2
DBF1
DBF0
Data
M
S
B
L
S
B
Bit
Symbol
Column address
Data
8.1.1
Instructions for Controlling the Peripheral Hardware (PUT, GET)
The PUT and GET instructions operate as described below:
(1) GET DBF, p
Data in the peripheral register at address p is read and written into the data buffer.
(2) PUT p, DBF
Data in the data buffer is set in the peripheral register at address p.



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