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173
CHAPTER 9 I/O PORT
9.4
Port 1
Port 1 is a general-purpose I/O port. It can also be used for resource I/O. The port pins
can be switched in units of bits between the I/O port and resource. This section
focuses on the general I/O port function. The section provides the configuration of port
1, lists its pins, shows a block diagram of the pins, and describes the corresponding
registers.
■
Port 1 Configuration
Port 1 consists of the following:
•
General-purpose I/O pins/external interrupt input pins (P10/INT0/DTT0 to P17/FRCK)
•
Port 1 data register (PDR1)
•
Port 1 data direction register (DDR1)
•
Port 1 pull-up resistor setting register (RDR1)
■
Port 1 Pins
The port 1 pins are also used as resource input pins. The pins cannot be used as output port pins when they
are used as resource input pins. Table 9.4-1 lists the port 1 pins.
See "1.7 I/O Circuit Types", for information on the circuit types.
Table 9.4-1 Port 1 Pins
Port
Pin
Port function
Resource function
I/O form
Circuit type
Input
Output
Port 1
P10/INT0/
DTTI0
P10
General-
purpose I/O
INT0/
DTTI0
External interrupt
input/waveform
generator input
CMOS
(hysteresis)
CMOS
C
P11/INT1
P11
INT1
External interrupt
input
P12/INT2/
DTTI1*
P12
INT2/
DTTI1*
External interrupt
input/waveform
sequencer input
P13/INT3
P13
INT3
External interrupt
input
P14/INT4
P14
INT4
P15/INT5/
TIN0
P15
INT5/
TIN0
External interrupt
input/reload timer
input
P16/INT6/
TO0
P16
INT6/
TO0
External interrupt
input/reload timer
output
P17/FRCK
P17
FRCK
Free-run timer
clock input
*: Pin names not applicable to MB90465 series
Содержание MB90460 Series
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Страница 9: ...iv ...
Страница 41: ...22 CHAPTER 1 OVERVIEW ...
Страница 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Страница 83: ...64 CHAPTER 3 CPU ...
Страница 95: ...76 CHAPTER 4 RESET ...
Страница 107: ...88 CHAPTER 5 CLOCK ...
Страница 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Страница 175: ...156 CHAPTER 7 INTERRUPT ...
Страница 181: ...162 CHAPTER 8 MODE SETTING ...
Страница 223: ...204 CHAPTER 9 I O PORT ...
Страница 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Страница 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Страница 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Страница 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Страница 485: ...466 CHAPTER 16 PWC Timer ...
Страница 531: ...512 CHAPTER 17 UART ...
Страница 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Страница 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Страница 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Страница 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Страница 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Страница 715: ...696 APPENDIX ...
Страница 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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