參數(shù)資料
型號: M37902FGCGP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機
文件頁數(shù): 49/143頁
文件大?。?/td> 1463K
代理商: M37902FGCGP
49
M37902FCCHP, M37902FGCHP, M37902FJCHP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
As shown in Figure 38, 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 5E
16
) shown in Figure 24. Table 11 shows the relation-
ship between these bits and the number of cycles. After a reset, the
processor mode register 0 is initialized to
00
16.
Therefore, the long-
est time is automatically set, however, the shortest time must be se-
lected by software.
Table 10.
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
7
Not change value of IPL.
Not change value of IPL.
Table 11. Relationship between interrupt priority detection time select
bit and number of cycles
Priority detection time select bit
Bit 5
0
0
1
0
Note:
For system clock f
sys
, refer to the section on the clock gener-
ating circuit.
Bit 4
0
1
7 cycles of f
sys
4 cycles of f
sys
2 cycles of f
sys
Number of cycles
(Note)
Fig. 38 Interrupt priority detection time
Operation code fetch cycle
f
sys
Sampling pulse
Priority detection time
Select one between 00 to
10 with bits 4 and 5 of
processor mode register 0
0 0
0 1
1 0
b5b4
(Note)
Note:
This pulse resides when 2 cycles of f
sys
is selected.
相關(guān)PDF資料
PDF描述
M37902FCCHP SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37902FGCHP DIODE SCHOTTKY DUAL COMMON-ANODE 25V 150mW 0.32V-vf 200mA-IFM 1mA-IF 2uA-IR SOT-523 3K/REEL
M37902FJCHP SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37905F8CFP 16-BIT CMOS MICROCOMPUTER
M37905F8CSP 16-BIT CMOS MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37902FGCHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37902FJCHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37903S4CHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER
M37905F8CFP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER
M37905F8CSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER