R5F212B7SDFA RENESAS [Renesas Technology Corp], R5F212B7SDFA Datasheet - Page 19

• Manufacturer Part Number: R5F212B7SDFA
• Description: RENESAS MCU
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/2A Group, R8C/2B Group
Rev.2.10
REJ03B0182-0210
2.
Figure 2.1 shows the CPU Registers. The CPU contains 13 registers. R0, R1, R2, R3, A0, A1, and FB configure a
register bank. There are two sets of register bank.
Figure 2.1
b31
Central Processing Unit (CPU)
Nov 26, 2007
NOTE:
1. These registers comprise a register bank. There are two register banks.
CPU Registers
R2
R3
b15
Page 17 of 60
IPL
b19
b19
INTBH
The 4 high order bits of INTB are INTBH and
the 16 low order bits of INTB are INTBL.
b15
b15
b15
b15
R0H (high-order of R0)
R1H (high-order of R1)
b8
U
b7
PC
I
INTBL
USP
FLG
ISP
FB
SB
R2
R3
A1
b8b7
A0
O
R0L (low-order of R0)
R1L (low-order of R1)
B
S
Z
D
C
b0
b0
b0
b0
b0
b0
2. Central Processing Unit (CPU)
Frame base register
Address registers
Data registers
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 bit
Processor interrupt priority level
Reserved bit
Interrupt table register
Program counter
(1)
(1)
(1)