- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄33795 > 4571 (Renesas Technology Corp.) SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號： | 4571 |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片4位微機的CMOS |
| 文件頁數(shù)： | 42/126頁 |
| 文件大?。?/td> | 1627K |
| 代理商： | 4571 |
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頁當前第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頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁
Rev.1.02
May 25, 2007
Page 22 of 124
REJ03B0179-0102
4571 Group
(1) External 0 interrupt request flag (EXF0)
External 0 interrupt request flag (EXF0) is set to “1” when a
valid waveform is input to P20/INT0 pin.
The valid waveforms causing the interrupt must be retained at
their level for 4 clock cycles or more of the system clock (Refer
to Figure 22).
The state of EXF0 flag can be examined with the skip instruction
(SNZ0). Use the interrupt control register V1 to select the
interrupt or the skip instruction. The EXF0 flag is cleared to “0”
when an interrupt occurs or when the next instruction is skipped
with the skip instruction.
External 0 interrupt activated condition
External 0 interrupt activated condition is satisfied when a
valid waveform is input to P20/INT0 pin.
The valid waveform can be selected from rising waveform,
falling waveform or both rising and falling waveforms. An
example of how to use the external 0 interrupt is as follows.
(1) Set the bit 3 of register I1 to “1” for the INT0 pin to be in the
input enabled state.
(2) Select the valid waveform with the bits 1 and 2 of register
I1.
(3) Clear the EXF0 flag to “0” with the SNZ0 instruction.
(4) Set the NOP instruction for the case when a skip is
performed with the SNZ0 instruction.
(5) Set both the external 0 interrupt enable bit (V10) and the
INTE flag to “1.”
The external 0 interrupt is now enabled. Now when a valid
waveform is input to the P20/INT0 pin, the EXF0 flag is set to
“1” and the external 0 interrupt occurs.
(2) External 1 interrupt request flag (EXF1)
External 1 interrupt request flag (EXF1) is set to “1” when a
valid waveform is input to P21/INT1 pin.
The valid waveforms causing the interrupt must be retained at
their level for 4 clock cycles or more of the system clock (Refer
to Figure 22).
The state of EXF1 flag can be examined with the skip instruction
(SNZ1). Use the interrupt control register V1 to select the
interrupt or the skip instruction. The EXF1 flag is cleared to “0”
when an interrupt occurs or when the next instruction is skipped
with the skip instruction.
External 1 interrupt activated condition
External 1 interrupt activated condition is satisfied when a
valid waveform is input to P21/INT1 pin.
The valid waveform can be selected from rising waveform,
falling waveform or both rising and falling waveforms. An
example of how to use the external 1 interrupt is as follows.
(1) Set the bit 3 of register I2 to “1” for the INT1 pin to be in the
input enabled state.
(2) Select the valid waveform with the bits 1 and 2 of register
I2.
(3) Clear the EXF1 flag to “0” with the SNZ1 instruction.
(4) Set the NOP instruction for the case when a skip is
performed with the SNZ1 instruction.
(5) Set both the external 1 interrupt enable bit (V11) and the
INTE flag to “1.”
The external 1 interrupt is now enabled. Now when a valid
waveform is input to the P21/INT1 pin, the EXF1 flag is set to
“1” and the external 1 interrupt occurs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 45722.123.242 | 1 mm2, COPPER ALLOY, WIRE TERMINAL |
| 45733.201.004 | 2.5 mm2, COPPER ALLOY, WIRE TERMINAL |
| 45733.417.031 | 2.5 mm2, WIRE TERMINAL |
| 45744.123.211 | 6 mm2, COPPER ALLOY, WIRE TERMINAL |
| 45744.201.004 | 6 mm2, COPPER ALLOY, WIRE TERMINAL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 4571_08 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Standard Characteristics |
| 45-710 | 制造商:GC Electronics 功能描述:EXTENSION CABLE, PARALLEL, 6FT, PUTTY; Cable Length - Imperial:6ft; Cable Length - Metric:1.83m; Connector Type A:Centronics 36 Position Plug; Connector Type B:Centronics 36 Position Receptacle; Jacket Color:Putty; Cable Color:Putty 制造商:Calrad Electronics 功能描述:Cable Assembly Parallel 6m 28AWG 36 POS SCSI to 36 POS SCSI M-F |
| 4-571011-3 | 功能描述:ANVIL 制造商:te connectivity amp connectors 系列:* 零件狀態(tài):有效 標準包裝:1 |
| 457102-1 | 制造商:TE Connectivity 功能描述:BLOCK, PLATE MTG - Bulk |
| 45710224PTC2103 | 制造商:Omron Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。