參數(shù)資料
型號(hào)： M38277M8MXXXFP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù)： 69/70頁
文件大?。?/td> 1112K
代理商： M38277M8MXXXFP
8
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
3827 Group
MITSUBISHI MICROCOMPUTERS
Not available
Processor mode bits
b1 b0
0
0 : Single-chip mode
0
1 :
1
0 :
1
1 :
Stack page selection bit
0 : 0 page
1 : 1 page
Not used (returns “1” when read)
(Do not write “0” to this bit.)
Port XC switch bit
0 : Stop oscillating
1 : XCIN, XCOUT
Main clock ( XIN-XOUT) stop bit
0 : Oscillating
1 : Stopped
Main clock division ratio selection bit
0 : XIN/2 (high-speed mode)
1 : XIN/8 (middle-speed mode)
Internal system clock selection bit
0 : XIN-XOUT selected (middle-/high-speed mode)
1 : XCIN-XCOUT selected (low-speed mode)
CPU mode register
(CPUM (CM) : address 003B16)
b7
b0
FUNCTIONAL DESCRIPTION
Central Processing Unit (CPU)
The 3827 group uses the standard 740 family instruction set. Re-
fer to the table of 740 family addressing modes and machine
instructions or the 740 Family Software Manual for details on the
instruction set.
Machine-resident 740 family instructions are as follows:
The FST and SLW instruction cannot be used.
The STP, WIT, MUL, and DIV instruction can be used.
[CPU Mode Register (CPUM)] 003B16
The CPU mode register contains the stack page selection bit and
the internal system clock selection bit.
The CPU mode register is allocated at address 003B16.
Fig. 6 Structure of CPU mode register
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