2-2
MSM66591/ML66592 User's Manual
Chapter 2 Description of Pins
For the pins that have secondary functions set by P2SF, I/O settings by P2IO become
invalid.
<Description of the Secondary Functions of Each Pin>
• RTO4 (P2_0)–RTO11 (P2_7)
The preset level is output when the value of registers 4–11 (TMR4–TMR11) of the
flexible timer match the selected counter values.
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), P2 becomes a high imped-
ance input.
When Port 2 is in output status, "H" or "L" level is output if the
OE
pin (pin 71) is in "L"
level. If the
OE
pin is in "H" level, Port 2 goes into high impedance status.
2.4
P3_0–P3_7: Input/Output Pins
8-bit I/O pins of Port 3. I/O can be specified in bit units by the Port 3 mode register
(P3IO).
P3_0–P3_7 also function as I/O pins for internal operations (secondary function).
Secondary functions for P3_0–P3_7 are set in bit units by the Port 3 secondary function
control register (P3SF). For the pins that have secondary functions set by P3SF, I/O
settings by P3IO become invalid.
<Description of Secondary Functions of Each Pin>
• FTM17A (P3_0)
When register 17 (TMR17) of the flexible timer is in RTO mode, and when the value
of the TMR17 matches the selected counter value, the preset level is output.
When the TMR17 is in CAP mode, FTM17A is set to input pin status. If the specified
edge is input to this pin, the selected counter value is input to the TMR17.
• FTM17B (P3_1)–FTM17D (P3_3)
When the TMR17 is in 4-port output RTO mode, and when the value of the TMR17
matches the selected counter value, the preset level is output.
• CAP0 (P3_4)–CAP3 (P3_7)
If the edge specified to this pin is input for a specified number of times, the selected
counter value is input to timer registers 0–3 (TMR0–TMR3).
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), P3 becomes a high imped-
ance input.
When P3_0–P3_3 are in output status, "H" or "L" level is output if the
OE
pin (pin 71) is
in "L" level. If the
OE
pin is in "H" level, they go into high impedance status.
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...
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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 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE...
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 170: ...Flexible Timer FTM Chapter 11 11 11...
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Страница 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM...
Страница 214: ...General Purpose 8 Bit Timer Function Chapter 12 12...
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Страница 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function...
Страница 224: ...PWM Functions Chapter 13 13...
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Страница 244: ...Baud Rate Generator Functions Chapter 14 14...
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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...
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Страница 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions...
Страница 382: ...Transition Detector Functions Chapter 17 17...
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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...
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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...
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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...
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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...