参数资料
型号: R3F10011NXXXSP
元件分类: 微控制器/微处理器
英文描述: MROM, 8 MHz, MICROCONTROLLER, PDSO20
封装: 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20
文件页数: 9/30页
文件大小: 229K
代理商: R3F10011NXXXSP
R38F1 Group, R38F2 Group, R38F3 Group
2. Central Processing Unit (CPU)
REJ03B0226-0001 Rev.0.01
Nov 21, 2007
Page 17 of 28
Under development Preliminary specification
Notice: This is not a final specification. Some parametric limits are subject to change.
2.
Central Processing Unit (CPU)
The R38F1, R38F2, and R38F3 Groups are built with the CPU used throughout the 740 Family.
The CPU contains six registers, as shown in Figure 2.1.
Figure 2.1
CPU Registers
Processor status register
Carry flag
Zero flag
Interrupt disable flag
Decimal mode flag
Break flag
Index X mode flag
Overflow flag
Negative flag
b7
b0
b15
Program counter
Stack pointer
Index register Y
Index register X
Accumulator
A
X
Y
S
PCL
PCH
C
Z
I
D
B
T
V
N
b7
b0
b7
b0
b7
b0
b7
b0
b7
b0
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