M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 30

• Manufacturer Part Number: M37702E6BFS
• Description: EPROM MCU/8BIT CMOS EMULATION CH
• Manufacturer: Renesas Electronics America

Specifications of M37702E6BFS

• Accessory Type: Emulator EPROM MCU
• For Use With/related Products: 7702
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Fig. 2.1.1 CPU registers structure
CENTRAL PROCESSING UNIT (CPU)
2.1 Central processing unit
2.1 Central processing unit
The CPU (Central Processing Unit) has the ten registers as shown in Figure 2.1.1.
2–2
b7
b23
b7
b15
0
0
PG
DT
0
0
0
b16 b15
b0
b0
b10
b15
b15
b15
b15
b15
b15
b15
IPL
b9
DPR
b8
PC
PS
A
X
Y
S
B
H
H
H
H
H
7702/7703 Group User’s Manual
b7
H
H
N
H
b6
V
b8
b8
b8
b8
b8
b8
b8
b8
b5
m
b7
b7
b7
b7
b7
b7
b7
b7
b4
x
b3
D
DPR
PC
PS
Processor interrupt priority level
A
B
X
Y
S
b2
L
L
L
L
L
I
Negative flag
L
L
L
Overflow flag
b1
Z
Data length flag
Index register length flag
b0
C
b0
b0
b0
b0
b0
b0
b0
b0
Decimal mode flag
Interrupt disable flag
Zero flag
Index register Y (Y)
Direct page register (DPR)
Accumulator A (A)
Accumulator B (B)
Index register X (X)
Data bank register (DT)
Program counter (PC)
Processor status register (PS)
Stack pointer (S)
Program bank register (PG)
Carry flag