参数资料
型号: M37224M3-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-42
文件页数: 7/83页
文件大小: 901K
代理商: M37224M3-XXXSP
M37224M3-XXXSP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
15
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IREQ1) [Address 00FC
B
Name
Functions
After reset RW
Interrupt Request Register 1
0
0 : No interrupt request issued
1 : Interrupt request issued
Timer 1 interrupt
request bit
(TM1R)
1
Timer 2 interrupt
request bit
(TM2R)
2
Timer 3 interrupt
request bit
(TM3R)
3
Timer 4 interrupt
request bit
(TM4R)
4
CRT interrupt
request bit
(CRTR)
5VSYNC interrupt
request bit
(VSCR)
7
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0
V
0
V
0
V
0
V
0
V
0
V
INT3 interrupt
request bit
(IT3R)
0 : No interrupt request issued
1 : Interrupt request issued
V
16
]
R
6
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
R
0
Fig. 10. Interrupt Request Register 1
Fig. 11. Interrupt Request Register 2
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 2 (IREQ2) [Address 00FD
B
Name
Functions
After reset RW
Interrupt Request Register 2
0
INT1 interrupt
request bit (ITIR)
0 : No interrupt request issued
1 : Interrupt request issued
1
INT2 interrupt
request bit (IT2R)
2
Serial I/O interrupt
request bit (SIR)
4
f(XIN)/4096 interrupt
request bit (MSR)
3,
5, 6
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
7
Fix this bit to “0.”
0
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0
V: “0” can be set by software, but “1” cannot be set.
0
V
0
V
0
V
0
V
0 : No interrupt request issued
1 : Interrupt request issued
16
]
R
R—
R
RW
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