參數(shù)資料
型號(hào)： 7643
英文描述： IrDA. protocol handler plus endec for DCE Apps, -40C to +85C, 18-SOIC 300mil, TUBE
中文描述： 7643Group數(shù)據(jù)表數(shù)據(jù)表1369K/JUL.30.03
文件頁數(shù)： 20/120頁
文件大?。?/td> 1369K
代理商： 7643
Rev.1.00 Jul 30, 2003 page 20 of 119
7643 Group
INTERRUPTS
There are fourteen interrupt sources: three externals, ten internals,
and one software.
Interrupt Control
Each interrupt except the BRK instruction interrupt has both an Inter-
rupt Request Bit and an Interrupt Enable Bit, and is controlled by the
Interrupt Disable Flag (I). An interrupt occurs if the corresponding
Interrupt Request and Enable Bits are “1” and the Interrupt Disable
Flag is “0”.
Interrupt Enable Bits can be set or cleared by software. Interrupt Re-
quest Bits can be cleared by software, but cannot be set by software.
Additionally, an active edge of INT
0
and INT
1
can be selected by
using the interrupt polarity select register (address 0011
16
).
The BRK instruction interrupt and reset cannot be disabled with any
flag or bit. The I Flag disables all interrupts except the BRK instruc-
tion interrupt and reset. If several interrupts requests occur at the
same time, the interrupt with the highest priority is accepted first.
Interrupt Operation
When an interrupt request occurs, the following operations are auto-
matically performed:
1.The processing being executed is stopped.
2.The contents of the program counter and processor status reg-
ister are automatically pushed onto the stack.
3.The Interrupt Disable Flag is set and the corresponding in-
terrupt request bit is cleared.
4.The interrupt jump destination address is read from the vector
table into the program counter.
■
Notes
When setting the followings, the interrupt request bit may be set to
“1”.
When setting external interrupt active edge
Related register: Interrupt polarity select register (address 0011
16
)
When not requiring for the interrupt occurrence synchronized with
these setting, take the following sequence.
Set the corresponding Interrupt Enable Bit to “0” (disabled).
Set the Interrupt Polarity Select Bit (Active Edge Switch Bit).
Set the corresponding Interrupt Request Bit to “0” after 1 or more
instructions have been executed.
Set the corresponding Interrupt Enable Bit to “1” (enabled).
Fig. 16 Interrupt control
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相關(guān)PDF資料
PDF描述
765-11-(SERIES) Analog IC
765-11-20K Analog IC
765-11-25A Analog IC
765-11E 8 BIT INPUT/OUTPUT EXPANDER, I2C INTERFACE, -40C to +125C, 20-QFN, TUBE
765-11R 8-bit I/O Expander with I2C Interface., -40C to +125C, 18-SOIC 300mil, TUBE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
764-3"x36yd-Red 功能描述:膠帶 764 RED 3X36 YD BULK RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
764-3"x36yd-White 功能描述:膠帶 WHITE 3X36YD BULK RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
764-3"x36yd-Yellow 功能描述:膠帶 764 YELLOW 3X36 YD BULK RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
7643_06 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
76430 制造商:Brady Corporation 功能描述:TAPE, BARRICADE, BLACK/PHOSPHORESCENT, 2INX5YD; Tape Type:Safety, Hazard Warning; Tape Backing Material:Polyester Film; Tape Width - Metric:50.8mm; Tape Width - Imperial:2"; Tape Length - Metric:4.572m; Tape Length - Imperial:5yard ;RoHS Compliant: NA
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