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MSM66591/ML66592 User's Manual
Chapter 15 Serial Port Functions
[9]
SCI3 Interrupt Control Register (SR3INT)
When SCI3 is in the 4-stage buffer mode (SR3EXP bit of SR3CON is "1"), the 7-bit
SR3INT register controls the receive-ready interrupt requests for each receive buffer
(S3BUF0 to S3BUF3).
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), SR3INT becomes 01H.
RV3IRQ0 (bit 4) of SR3INT monitors RV3IRQ0 (bit 3) of S3STAT0. During the 4-stage
buffer mode, by reading SR3INT once, it is possible to verify which buffer has gener-
ated a receive-ready. This bit is read-only and writes are ignored. To clear (write to) this
bit, write to RV3IRQ0 (bit 5) of S3STAT0.
Figure 15-23 shows the configuration of SR3INT.
<Description of Each Bit>
• RV3IE1 (bit 1)
This bit enables or disables the generation of SCI3 S3BUF1 receive-ready interrupt
requests. If this bit is "1", generation is enabled, and if "0", generation is disabled.
• RV3IE2 (bit 2)
This bit enables or disables the generation of SCI3 S3BUF2 receive-ready interrupt
requests. If this bit is "1", generation is enabled, and if "0", generation is disabled.
• RV3IE3 (bit 3)
This bit enables or disables the generation of SCI3 S3BUF3 receive-ready interrupt
requests. If this bit is "1", generation is enabled, and if "0", generation is disabled.
• RV3IRQ0 (bit 4)
This bit monitors RV3IRQ0 of S3STAT0. (Read-only)
This bit is set to "1" when an SCI3 S3BUF0 receive-ready is generated. To clear this
bit to "0", clear RV3IRQ0 of S3STAT0.
• RV3IRQ1 (bit 5)
This bit is set to "1" when an SCI3 S3BUF1 receive-ready is generated. This bit is not
automatically cleared to "0" even when an SCI3 interrupt is processed, so clear it by
the program.
• RV3IRQ2 (bit 6)
This bit is set to "1" when an SCI3 S3BUF2 receive-ready is generated. This bit is not
automatically cleared to "0" even when an SCI3 interrupt is processed, so clear it by
the program.
• RV3IRQ3 (bit 7)
This bit is set to "1" when an SCI3 S3BUF3 receive-ready is generated. This bit is not
automatically cleared to "0" even when an SCI3 interrupt is processed, so clear it by
the program.
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...
Страница 17: ......
Страница 18: ...Overview Chapter 1 1...
Страница 19: ......
Страница 30: ...Description of Pins Chapter 2 2...
Страница 31: ......
Страница 44: ...CPU Architecture Chapter 3 3...
Страница 45: ......
Страница 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture...
Страница 102: ...CPU Control Functions Chapter 4 4...
Страница 103: ......
Страница 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions...
Страница 112: ...Memory Control Functions Chapter 5 5...
Страница 113: ......
Страница 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions...
Страница 118: ...Port Functions Chapter 6 6...
Страница 119: ......
Страница 152: ...Output Pin Control Pin OE Chapter 7 7...
Страница 153: ......
Страница 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE...
Страница 156: ...Clock Generation Circuit Chapter 8 8...
Страница 157: ......
Страница 160: ...Time Base Counter TBC Chapter 9 9...
Страница 161: ......
Страница 164: ...Watchdog Timer WDT Chapter 10 10...
Страница 165: ......
Страница 170: ...Flexible Timer FTM Chapter 11 11 11...
Страница 171: ......
Страница 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM...
Страница 214: ...General Purpose 8 Bit Timer Function Chapter 12 12...
Страница 215: ......
Страница 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function...
Страница 224: ...PWM Functions Chapter 13 13...
Страница 225: ......
Страница 244: ...Baud Rate Generator Functions Chapter 14 14...
Страница 245: ......
Страница 263: ...14 18 MSM66591 ML66592User sManual Chapter 14 Baud Rate Generator Functions...
Страница 264: ...Serial Port Functions Chapter 15 15...
Страница 265: ......
Страница 348: ...A D Converter Functions Chapter 16 16...
Страница 349: ......
Страница 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions...
Страница 382: ...Transition Detector Functions Chapter 17 17...
Страница 383: ......
Страница 387: ...17 4 MSM66591 ML66592User sManual Chapter 17 Transition Detector Functions...
Страница 388: ...Peripheral Functions Chapter 18 18...
Страница 389: ......
Страница 392: ...External Interrupt Request Function Chapter 19 19...
Страница 393: ......
Страница 396: ...Interrupt Request Processing Function Chapter 20 20...
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Страница 407: ...20 10 MSM66591 ML66592User sManual Chapter 20 Interrupt Request Processing Function...
Страница 408: ...Bus Port Functions Chapter 21 21...
Страница 409: ......
Страница 413: ...21 4 MSM66591 ML66592User sManual Chapter 21 Bus Port Functions...
Страница 414: ...Expansion Port Chapter 22 22...
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Страница 420: ...Serial Port with FIFO SCI5 Chapter 23 23...
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Страница 431: ...23 10 MSM66591 ML66592User sManual Chapter 23 Serial Port with FIFO SCI5...
Страница 432: ...RAM Monitor Function Chapter 24 24...
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Страница 441: ...24 8 MSM66591 ML66592User sManual Chapter 24 RAM Monitor Function...
Страница 442: ...25 Electrical Characteristics Chapter 25...
Страница 443: ......
Страница 458: ...Package Dimensions Chapter 26 26...
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Страница 461: ...26 2 MSM66591 ML66592User sManual Chapter 26 Package Dimensions...
Страница 462: ...Revision History Chapter 27 27...
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Страница 465: ...27 2 MSM66591 ML66592User sManual Chapter 27 Revision History...