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7751 データシート(PDF) 21 Page - Renesas Technology Corp

部品番号 7751
部品情報  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  540 Pages
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メーカー  RENESAS [Renesas Technology Corp]
ホームページ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7751 データシート(HTML) 21 Page - Renesas Technology Corp

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CENTRAL PROCESSING UNIT (CPU)
2.1 Central processing unit
2–2
7751 Group User’s Manual
2.1 Central processing unit
The CPU (Central Processing Unit) has the ten registers as shown in Figure 2.1.1.
Fig. 2.1.1 CPU registers structure
b0
b7
b8
b15
AH
AL
b0
b7
b8
b15
BH
BL
b0
b7
b8
b15
XH
XL
b0
b7
b8
b15
YH
YL
b0
b7
b8
b15
SH
SL
b0
b7
b8
b15
b7
b0
b8
b23
b16 b15
b7
b0
PCH
PCL
PG
b0
b7
DT
b0
b7
b8
b15
b0
b1
b2
b3
b4
b5
b6
b7
b8
b10
000
00
C
Z
I
D
x
m
V
N
IPL
Accumulator A (A)
Accumulator B (B)
Index register X (X)
Index register Y (Y)
Stack pointer (S)
Data bank register (DT)
Program counter (PC)
Program bank register (PG)
Direct page register (DPR)
Processor status register (PS)
Processor interrupt priority level
Carry flag
Zero flag
Interrupt disable flag
Index register length flag
Decimal mode flag
Data length flag
Overflow flag
Negative flag
DPRL
DPRH
PSL
PSH
b9
b15



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