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參數(shù)資料
| 型號(hào)： | ST62P28CB1 |
| 英文描述： | 8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTR A/D CONVERTER. 8-BIT AUTO-RELOAD TIMER. UART. OSG. SAFE RESET AND 28 PINS |
| 中文描述： | 8位微控制器（MCU）的與檢察官辦公室。光盤。 FASTR的A / D轉(zhuǎn)換器。 8位自動(dòng)重加載定時(shí)器。 UART的。業(yè)務(wù)支助。安全復(fù)位和28個(gè)引腳 |
| 文件頁(yè)數(shù)： | 30/84頁(yè) |
| 文件大?。?/td> | 969K |
| 代理商： | ST62P28CB1 |
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ST62T28C/E28C
INTERRUPTS
(Cont’d)
Interrupt Polarity Register (IPR)
Address: DAh
—
Read/Write
In conjunction with I/O register ESB bit, the polarity
of I/O pins triggered interrupts can be selected by
setting accordingly the Interrupt Polarity Register
(IPR). If a bit in IPR is set to one the corresponding
port interrupt is inverted (e.g. IPR bit 2 = A; port C
generates interrupt on rising edge. At reset, IPR is
cleared and all port interrupts are not inverted (e.g.
Port C generates interrupts on falling edges).
Bit 7 - Bit 4 =
Unused
.
Bit 3 =
Port D Interrupt Polarity
.
Bit 2 =
Port C Interrupt Polarity
.
Bit 1=
Port A Interrupt Polarity
.
Bit 0 =
Port B Interrupt Polarity
.
Tables 11. I/O Interrupts selections according to IPR, IOR programming
7
0
-
-
-
-
PortD PortC PortA PortB
GEN
IPR3
IPR0
IOR5
Port B occurrence
Port D occurrence
Interrupt
source
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
X
falling edge
rising edge
rising edge
falling edge
falling edge
rising edge
rising edge
falling edge
Disabled
falling edge
rising edge
falling edge
rising edge
rising edge
falling edge
rising edge
falling edge
Disabled
2
GEN
IPR1
IOR6
Port A occurrence
Interrupt
source
1
1
1
1
0
0
0
1
1
X
0
1
0
1
X
falling edge
low level
rising edge
high level
Disabled
1
IPR2
0
1
Port C occurrence
falling edge
rising edge
Interrupt source
0
30
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相關(guān)代理商/技術(shù)參數(shù) |
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