參數(shù)資料
型號: M37920F8CHP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù): 94/155頁
文件大小: 1274K
代理商: M37920F8CHP
43
M37920F8CGP, M37920F8CHP, M37920FCCGP
M37920FCCHP, M37920FGCGP, M37920FGCHP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
As shown in Figure 25, there are three different interrupt priority de-
tection time from which one is selected by software. After the se-
lected time has elapsed, the highest priority is determined and is
processed after the currently executing instruction has been com-
pleted.
The time is selected with bits 4 and 5 of the processor mode register
0 (address 5E16) shown in Figure 26. Table 16 shows the relation-
ship between these bits and the number of cycles. After a reset, the
processor mode register 0 is initialized to “0016.” Therefore, the long-
est time is automatically set, however, the shortest time must be se-
lected by software.
Table 15. Value loaded in processor interrupt level (IPL) during an interrupt
Interrupt types
Reset
Watchdog timer
NMI
Zero divide
Address matching detection
Setting value
0
7
Not change value of IPL.
Table 16. Relationship between interrupt priority detection time select
bit and number of cycles
Priority detection time select bit
Bit 5
0
1
Bit 4
0
1
0
7 cycles of
φ
4 cycles of
φ
2 cycles of
φ
Number of cycles (Note)
Fig. 25 Interrupt priority detection time
Operation code fetch cycle
φ
Sampling pulse
Priority detection time
Select one between 0 to
2 with bits 4 and 5 of
processor mode register 0
0
1
2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37920FCCGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920FCCHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920FGCGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920FGCHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920S4CGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER