UPD17016 Datasheet, PDF (39/324 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17016, 17017
5.2 System Register List
Figure 5-2 shows the configuration of the system register.
Address
74H
Name
Symbol
AR3
Figure 5-2. Configuration of System Register
75H
76H
77H
System register
Address register
(AR)
AR2
AR1
AR0
78H
Window
register
(WR)
WR
79H
Bank
register
(BANK)
BANK
Bit
Data
b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0
00000000
( µPD17016)
00
000
( µPD17017)
00
Address
7AH
7BH
7CH
7DH
7EH
7FH
Name
System register
Index register (IX)
General register
Program status
Data memory row
pointer (RP)
word
address pointer (MP)
(PSWORD)
Symbol
IXH
IXM
IXL
RPH
RPL
PSW
MPH
MPL
Bit b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0
Data
M
P00
BCCZ I
(IX)
(RP)
000
CMY
X
E
(MP)
DP
E
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