参数资料
型号: MB89475PMC
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: MICROCONTROLLER, PQFP48
封装: 7 X 7 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 11/52页
文件大小: 1359K
代理商: MB89475PMC
MB89470 Series
DS07-12552-2E
19
2.
Registers
The F2MC-8L family has two types of registers; dedicated registers in the CPU and general-purpose registers
in the memory. The following registers are provided :
The PS can further be divided into higher 8 bits for use as a register bank pointer (RP) and the lower 8 bits for
use as a condition code register (CCR) . (See the diagram below.)
Program counter (PC)
: A 16-bit register for indicating instruction storage positions
Accumulator (A)
: A 16-bit temporary register for storing arithmetic operations, etc. When the
instruction is an 8-bit data processing instruction, the lower byte is used.
Temporary accumulator (T) : A 16-bit register which performs arithmetic operations with the accumulator.
When the instruction is an 8-bit data processing instruction, the lower byte is
used.
Index register (IX)
: A 16-bit register for index modification
Extra pointer (EP)
: A 16-bit pointer for indicating a memory address
Stack pointer (SP)
: A 16-bit register for indicating a stack area
Program status (PS)
: A 16-bit register for storing a register pointer, a condition code
PC
A
T
IX
EP
SP
PS
: Program counter
: Accumulator
: Temporary accumulator
: Index register
: Extra pointer
: Stack pointer
: Program status
16 bits
FFFDH
Undefined
I-flag = 0, IL1, 0 = 11
Other bits are undefined.
Initial value
PS
RP
CCR
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RP
Vacancy Vacancy Vacancy
H
I
IL1, 0
N
Z
V
C
Structure of the Program Status Register
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