- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370838 > M34551E8 (Mitsubishi Electric Corporation) 4-BIT SINGLE-CHIP MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號： | M34551E8 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 4位單片機 |
| 文件頁數(shù)： | 15/68頁 |
| 文件大?。?/td> | 698K |
| 代理商： | M34551E8 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
15
MITSUBISHI MICROCOMPUTERS
4551 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for
INFRARED REMOTE CONTROL TRANSMITTER
(6) Interrupt control register
G
Interrupt control register V1
Interrupt enable bits of external 0, timer 1 and timer 2 are
assigned to register V1. Set the contents of this register
through register A with the TV1A instruction. The TAV1
instruction can be used to transfer the contents of register
V1 to register A.
Table 6 Interrupt control register
V1
3
V1
2
V1
1
V1
0
Timer 2 interrupt enable bit
Timer 1 interrupt enable bit
Not used
External 0 interrupt enable bit
0
1
0
1
0
1
0
1
Interrupt disabled (SNZT2 instruction is valid)
Interrupt enabled (SNZT2 instruction is invalid)
Interrupt disabled (SNZT1 instruction is valid)
Interrupt enabled (SNZT1 instruction is invalid)
This bit has no function, but read/write is enabled.
Interrupt disabled (SNZ0 instruction is valid)
Interrupt enabled (SNZ0 instruction is invalid)
Interrupt control register V1
at reset : 0000
2
at power down : 0000
2
R/W
Note: “R” represents read enabled, and “W” represents write enabled.
(7) Interrupt sequence
Interrupts occur only when the respective INTE flag, interrupt
enable bits (V1
0
–V1
3
), and interrupt request flags (EXF0, T1F,
T2F) are “1.” The interrupt actually occurs 2 to 3 machine
cycles after the cycle in which all three conditions are satisfied.
The interrupt occurs after 3 machine cycles only when the
three interrupt conditions are satisfied on execution of other
than one-cycle instructions (Refer to Figure 16).
Fig. 16 Interrupt sequence
The address is stacked to the last cycle.
This interval of cycles depends on the executed instruction at the time when each interrupt activated
condition is satisfied.
2 to 3 machine cycles
(Note 1, 2)
Software starts from the
interrupt address.
Flag cleared
Interrupt enabled state
EI instruction
execution cycle
Interrupt enable
flag (INTE)
Retaining level for 4 cycles or
more of STCK is necessary.
Interrupt disabled state
EXF0
flag
T1F, T2F
flags
INT pin
External
interrupt
Timer 1
and
Timer 2
interrupts
Interrupt activated
condition is satisfied.
G
When an interrupt request flag is set after its interrupt is enabled
1 machine cycle
System clock (STCK)
“H”
“L”
“1”
“0”
“1”
“0”
“1”
“0”
Notes 1:
2:
相關PDF資料 |
PDF描述 |
|---|---|
| M34551M4 | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34551M8 | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34570EDFP | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570M8-117FP | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570E8FP | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M34551E8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34551M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-BIT SINGLE-CHIP MICROCOMPUTER |
| M34551M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34551M8 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-BIT SINGLE-CHIP MICROCOMPUTER |
| M34552G8FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復。