參數(shù)資料
型號: MB95116APV
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQCC48
封裝: PLASTIC, BCC-48
文件頁數(shù): 9/58頁
文件大小: 629K
代理商: MB95116APV
MB95110A Series
17
2.
Register
The MB95110A series has two types of registers; dedicated registers in the CPU and general-purpose registers
in the memory. The dedicated registers are as follows:
The PS can further be divided into higher 8 bits for use as a register bank pointer (RP) and a direct bank pointer
(DP) and the lower 8 bits for use as a condition code register (CCR). (See the diagram below.)
Program counter (PC)
:
A 16-bit register to indicate locations where instructions are stored.
Accumulator (A)
: A 16-bit register for temporary storage of arithmetic operations. In the case of
an 8-bit data processing instruction, the lower one byte is used.
Temporary accumulator (T)
: A 16-bit register which performs arithmetic operations with the accumulator.
In the case of an 8-bit data processing instruction, the lower one byte is used.
Index register (IX)
:
A 16-bit register for index modification
Extra pointer (EP)
:
A 16-bit pointer to point to a memory address.
Stack pointer (SP)
:
A 16-bit register to indicate a stack area.
Program status (PS)
: A 16-bit register for storing a register bank pointer, a direct bank pointer, and
a condition code register
PC
A
T
IX
EP
SP
PS
16-bit
: Program counter
: Accumulator
: Temporary accumulator
: Index register
: Extra pointer
: Stack pointer
: Program status
Initial Value
FFFDH
0000H
0030H
PS
RP
CCR
15
14
13
12
11
10
9
8
DP2
DP1
DP0
7
6
5
432
1
0
R4
R3
R2
R1
R0
H
I
IL1
IL0
N
Z
V
C
DP
Structure of the program status
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