r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 43

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
2.
Figure 2.1 shows the 13 CPU Registers. The registers R0, R1, R2, R3, A0, A1, and FB form a single register bank. The
CPU has two register banks.
Figure 2.1
b31
Central Processing Unit (CPU)
Note:
1. These registers form a single register bank.
The CPU has two register banks.
Preliminary document
Specifications in this document are tentative and subject to change.
CPU Registers
R2
R3
b15
IPL
b19
b19
The higher 4 bits of INTB are INTBH and
the lower 16 bits of INTB are INTBL.
INTBH
b15
b15
b15
R0H (R0 high-order byte)
R1H (R1 high-order byte)
b15
b8
b7
U
PC
I
INTBL
b8
USP
FLG
ISP
R2
R3
FB
SB
A0
A1
O
R0L (R0 low-order byte)
R1L (R1 low-order byte)
b7
B
S
Z
D
C
b0
b0
b0
b0
b0
b0
2. Central Processing Unit (CPU)
Data registers
Address registers
Frame base register
Interrupt table register
Program counter
User stack pointer
Interrupt stack pointer
Static base register
Flag register
Carry flag
Debug flag
Zero flag
Sign flag
Register bank select flag
Overflow flag
Interrupt enable flag
Stack pointer select flag
Reserved bits
Processor interrupt priority level
Reserved bit
(1)
(1)
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