參數(shù)資料
型號(hào)： M37753S4CHP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, QFP-80
文件頁數(shù)： 100/110頁
文件大?。?/td> 1439K
代理商： M37753S4CHP
MITSUBISHI MICROCOMPUTERS
M37753M8C-XXXFP, M37753M8C-XXXHP
M37753S4CFP, M37753S4CHP
8
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
CENTRAL PROCESSING UNIT (CPU)
The CPU has ten registers and is shown in Figure 3. Each of these
registers is described below.
ACCUMULATOR A (A)
Accumulator A is the main register of the microcomputer. It consists
of 16 bits and the low-order 8 bits can be used separately. The data
length flag m determines whether the register is used as 16-bit reg-
ister or as 8-bit register. It is used as a 16-bit register when flag m is
“0” and as an 8-bit register when flag m is “1”. Flag m is a part of the
processor status register (PS) which is described later.
Data operations such as calculations, data transfer, input/output,
etc., is executed mainly through the accumulator.
ACCUMULATOR B (B)
Accumulator B has the same functions as accumulator A, but the use
of accumulator B requires more instruction bytes and execution
cycles than accumulator A.
INDEX REGISTER X (X)
Index register X consists of 16 bits and the low-order 8 bits can be
used separately. The index register length flag x determines whether
the register is used as 16-bit register or as 8-bit register. It is used as
a 16-bit register when flag x is “0” and as an 8-bit register when flag
x is “1”. Flag x is a part of the processor status register (PS) which is
described later.
In index addressing mode, register X is used as the index register
and the contents of this address is added to obtain the real address.
Index register X functions as a pointer register which indicates an
address of data table in instructions MVP, MVN, RMPA (Repeat
MultiPly and Accumulate).
INDEX REGISTER Y (Y)
Index register Y consists of 16 bits and the low-order 8 bits can be
used separately. The index register length flag x determines whether
the register is used as 16-bit register or as 8-bit register. It is used as
a 16-bit register when flag x is “0” and as an 8-bit register when flag
x is “1”. Flag x is a part of the processor status register (PS) which is
described later.
In index addressing mode, register Y is used as the index register
and the contents of this address is added to obtain the real address.
Index register Y functions as a pointer register which indicates an
address of data table in instructions MVP, MVN, RMPA (Repeat
MultiPly and Accumulate).
15
7
0
15
7
0
15
7
0
15
7
0
15
0
15
0
15
0
15
7
0
00000 IPL2 IPL1 IPL0 N V mx D
I
ZC
DPR
PC
S
YH
YL
XH
XL
BH
BL
AH
AL
Accumulator A
Accumulator B
Index register X
Index register Y
Stack pointer S
Program counter PC
Direct page register DPR
Processor status register PS
Carry flag
Zero flag
Interrupt disable flag
Decimal mode flag
Index register length flag
Data length flag
Overflow flag
Negative flag
Processor interrupt priority level IPL
70
PG
Program bank register PG
Data bank register DT
DT
Fig. 3 Register structure
相關(guān)PDF資料
PDF描述
M37753M8C-XXXFP 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP80
M37753S4CFP 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
M37753S4CFP 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
M37753M8C-XXXHP 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP80
M37754M6C-XXXGP 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP100
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