upd17072 Renesas Electronics Corporation., upd17072 Datasheet - Page 208
upd17072
Manufacturer Part Number
upd17072
Description
4-bit Single-chip Microcontroller With Hardware For Digital Tuning System
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD17072.pdf
(226 pages)
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22.
22.1 Data Buffer (DBF)
22.2 System Register (SYSREG)
208
Symbol name
DBF3
DBF2
DBF1
DBF0
Symbol name
AR3
AR2
AR1
AR0
WR
BANK
IXH
MPH
MPE
IXM
MPL
IXL
RPH
RPL
PSW
BCD
CMP
CY
Z
IXE
PD17073 RESERVED WORDS
Attribute
Attribute
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
MEM
FLG
FLG
FLG
FLG
FLG
FLG
0.0CH
0.0DH
0.0EH
0.0FH
0.74H
0.75H
0.76H
0.77H
0.78H
0.79H
0.7AH
0.7AH
0.7AH.3
0.7BH
0.7BH
0.7CH
0.7DH
0.7EH
0.7FH
0.7EH.0
0.7FH.3
0.7FH.2
0.7FH.1
0.7FH.0
Value
Value
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
Bits 15-12 of DBF
Bits 11-8 of DBF
Bits 7-4 of DBF
Bits 3-0 of DBF
Bits 15-12 of address register (fixed to “0”)
Bits 11-8 of address register
Bits 7-4 of address register
Bits 3-0 of address register
Window register (fixed to “0”)
Bank register (Only lower 1 bit is valid)
Index register, high
Memory pointer, high
Memory pointer enable flag
Index register, middle
Memory pointer, low
Index register, low
General register pointer, high
General register pointer, low (only lower 1 bit is valid)
Program status word
BCD operation flag
Compare flag
Carry flag
Zero flag
Index enable flag (fixed to “0”)
Description
Description
PD17072,17073
(fixed to “0”)
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