23-5
MSM66591/ML66592 User's Manual
Chapter 23 Serial Port with FIFO (SCI5)
23
23.4 SCI5 Interrupt Register (SCI5INT)
The SCI5 interrupt register (SCI5INT) is a 3-bit register that controls SCI5 interrupts.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), SCI5INT becomes 1FH.
Figure 23-4 shows the configuration of SCI5INT.
<Description of Each Bit>
• S5EXIRQ (bit 5)
When a valid edge is input to external interrupt 2 (INT2), this individual interrupt
request flag becomes "1".
Because this flag is not automatically cleared even when an interrupt is processed, it
must be cleared by the program.
• S5RIRQ (bit 6)
When SCI5 reception is complete, this individual interrupt request flag becomes "1".
Because this flag is not automatically cleared even when an interrupt is processed, it
must be cleared by the program.
• S5TIRQ (bit 7)
When SCI5 transmission is complete, this individual interrupt request flag becomes
"1".
Because this flag is not automatically cleared even when an interrupt is processed, it
must be cleared by the program.
Figure 23-4 SCI5INT Configuration
SCI5INT
7
S5TIRQ S5RIRQ S5EXIRQ
—
—
—
—
—
6
5
4
3
2
1
0
0
1
Interrupt request generation due to
INT2 pin input: no
Interrupt request generation due to
INT2 pin input: yes
Interrupt request generation due to
SCI5 reception complete: no
Interrupt request generation due to
SCI5 reception complete: yes
0
1
0
1
Interrupt request generation due to
SCI5 transmission complete: no
Interrupt request generation due to
SCI5 transmission complete: yes
"—" indicates a bit that is not provided.
"1" is read if a read instruction is executed.
Содержание MSM66591
Страница 1: ...MSM66591 ML66592 User s Manual CMOS 16 bit microcontroller FEUL66591 66592 01 Issue Date Mar 4 2002...
Страница 15: ...Contents 12...
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Страница 18: ...Overview Chapter 1 1...
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Страница 30: ...Description of Pins Chapter 2 2...
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Страница 44: ...CPU Architecture Chapter 3 3...
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Страница 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture...
Страница 102: ...CPU Control Functions Chapter 4 4...
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Страница 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions...
Страница 112: ...Memory Control Functions Chapter 5 5...
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Страница 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions...
Страница 118: ...Port Functions Chapter 6 6...
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Страница 152: ...Output Pin Control Pin OE Chapter 7 7...
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Страница 156: ...Clock Generation Circuit Chapter 8 8...
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Страница 160: ...Time Base Counter TBC Chapter 9 9...
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Страница 164: ...Watchdog Timer WDT Chapter 10 10...
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Страница 348: ...A D Converter Functions Chapter 16 16...
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Страница 388: ...Peripheral Functions Chapter 18 18...
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