參數(shù)資料
型號: MB89PV630-102CF
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, CQFP64
封裝: 1 MM PITCH, CERAMIC, MQFP-64
文件頁數(shù): 15/60頁
文件大?。?/td> 1472K
代理商: MB89PV630-102CF
MB89630R Series
22
DS07-12531-4E
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 dedicated registers are provided:
Program counter (PC):
A 16-bit register for indicating the 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):
A16-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):
A16-bit register for index modification
Extra pointer (EP):
A16-bit pointer for indicating a memory address
Stack pointer (SP):
A16-bit register for indicating a stack area
Program status (PS):
A16-bit register for storing a register pointer, a condition code
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.)
PC
A
T
IX
EP
SP
PS
16 bits
: Program counter
: Accumulator
: Temporary accumulator
: Index register
: Extra pointer
: Stack pointer
: Program status
FFFDH
I-flag = 0, IL1, IL0 = 11
The other bit values are indeterminate.
Initial value
Indeterminate
Structure of the program status register
Vacancy Vacancy Vacancy
H
I
IL1, IL0
N
Z
VC
54
RP
PS
10
9876
3210
15
14
13
12
11
RP
CCR
相關(guān)PDF資料
PDF描述
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參數(shù)描述
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