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CHAPTER 9 I/O PORT
9.3
Port 0
Port 0 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. This section also provides the configuration
of port 0, lists of pins, shows a block diagram of the pins, and describes the
corresponding registers.
■
Port 0 Configuration
Port 0 consists of the following:
•
General-purpose I/O pins/waveform sequencer output/PWC0 input, output (P00/OPT0 to P07/PWO0)
(waveform sequencer output and PWC0 not present in MB90465 series)
•
Port 0 data register (PDR0)
•
Port 0 data direction register (DDR0)
•
Port 0 pull-up resistor setting register (RDR0)
■
Port 0 Pins
The port 0 I/O pins are also used as resource I/O pins. Therefore, the pins cannot be used as general-
purpose I/O port pins when they are used as resource I/O pins. Table 9.3-1 lists the port 0 pins.
See "1.7 I/O Circuit Types", for information on the circuit types.
Table 9.3-1 Port 0 Pins
Port
Pin
Port function
(single-chip mode)
Resource function
I/O form
Circuit
type
Input
Output
Port 0
P00/OPT0*
P00
General-
purpose I/O
OPT0*
Waveform
sequencer output
CMOS
CMOS
D
P01/OPT1*
P01
OPT1*
Waveform
sequencer output
P02/OPT2*
P02
OPT2*
Waveform
sequencer output
P03/OPT3*
P03
OPT3*
Waveform
sequencer output
P04/OPT4*
P04
OPT4*
Waveform
sequencer output
P05/OPT5*
P05
OPT5*
Waveform
sequencer output
P06/PWI0*
P06
PWI0*
PWC0 input
E
P07/PWO0*
P07
PWO0*
PWC0 output
*: Pin names not applicable to MB90465 series
Summary of Contents for MB90460 Series
Page 1: ...The following document contains information on Cypress products ...
Page 3: ......
Page 5: ......
Page 9: ...iv ...
Page 41: ...22 CHAPTER 1 OVERVIEW ...
Page 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Page 83: ...64 CHAPTER 3 CPU ...
Page 95: ...76 CHAPTER 4 RESET ...
Page 107: ...88 CHAPTER 5 CLOCK ...
Page 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Page 175: ...156 CHAPTER 7 INTERRUPT ...
Page 181: ...162 CHAPTER 8 MODE SETTING ...
Page 223: ...204 CHAPTER 9 I O PORT ...
Page 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Page 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Page 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Page 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Page 485: ...466 CHAPTER 16 PWC Timer ...
Page 531: ...512 CHAPTER 17 UART ...
Page 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Page 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Page 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Page 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Page 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Page 715: ...696 APPENDIX ...
Page 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 739: ......