參數(shù)資料
型號(hào): M37274MA-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PDIP52
封裝: 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-52
文件頁數(shù): 2/131頁
文件大?。?/td> 2049K
代理商: M37274MA-XXXSP
10
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274MA-XXXSP
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
paramentic
limits
are
subject
to change.
MITSUBISHI MICROCOMPUTERS
FUNCTIONAL DESCRIPTION
Central Processing Unit (CPU)
The M37274MA-XXXSP uses the standard 740 Family instruction
set. Refer to the table of 740 Family addressing modes and machine
instructions or the SERIES 740 <Software> User’s Manual for de-
tails on the instruction set.
Machine-resident 740 Family instructions are as follows:
The FST, SLW instruction cannot be used.
The MUL, DIV, WIT and STP instructions can be used.
CPU Mode Register
The CPU mode register contains the stack page selection bit and
internal system clock selection bit. The CPU mode register is allo-
cated at address 00FB16.
Fig. 3. CPU Mode Register
70
11
0
CPU mode register
(CPUM (CM) : address 00FB 16)
Processor mode bits
b1 b0
0 0 : Single-chip mode
0 1 :
1 0 :
1 1 :
Stack page selection bit (Note)
0 : Zero page
1 : 1 page
Fix these bits to “1.”
Note: This bit is set to “1” after the reset release.
XCOUT drivability selection bit
0 : LOW drive
1 : HIGH drive
Main colock (XIN–XOUT) stop bit
0 : Oscillating
1 : Stopped
Internal system clock selection bit
0 : XIN–XOUT selected (high-speed mode)
1 : XCIN–XCOUT selected (low-speed mode)
Not available
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