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UPD17704GC Datasheet(PDF) 45 Page - NEC

Part # UPD17704GC
Description  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM
PDF  356 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17704GC Datasheet(HTML) 45 Page - NEC

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µPD17704, 17705, 17707, 17708, 17709
5.2 System Register List
Figure 5-2 shows the configurations of the system registers.
Figure 5-2. Configuration of System Registers
Address
Name
Symbol
Bit
Data
74H
75H
76H
77H
78H
79H
7AH
7BH
7CH
7DH
7EH
7FH
Address register
(AR)
Window
register
(WR)
Bank
register
(BANK) Data memory row
address pointer (MP)
Index register
(IX)
General register
pointer (RP)
Program
status word
(PSWORD)
System registers
AR3
AR2
AR1
AR0
WR
BANK
IXH
MPH
IXM
MPL
IXL
RPH
RPL
PSW
b2 b1 b0
b3
b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0
M
P
E
0
b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0
B
C
D
b3 b2 b1 b0
C
M
P
C
Y
ZI
X
E
(RP)
(IX)
(MP)



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