SYNPWM datasheet(22/57 Pages) FEELING

Il numero della parte	SYNPWM

Spiegazioni elettronici	EPROM-Based 8-Bit Microcontroller with 10 bit ADC

PDF	57 Pages

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Produttore elettronici	FEELING [Feeling Technology Corp.]

Homepage	http://www.feeling-tech.com.tw/

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FM8P73B

Web site: http://www.feeling-tech.com.tw

Rev1.0 Nov 20, 2013

P.22/FM8P73B

FEELING

TECHNOLOGY

2.2

I/O Ports

There are totally 13 bi-directional tri-state I/O ports and one (IOB3) input only. All I/O pins (IOA<5:0>, IOB<7:0>)

have specified data direction control registers (IOSTA, IOSTB) which can configure these pins as output or input.

All the IO pins can also enable or disable a weak internal pull-high by setting APHCON and BPHCON. This weak

pull-high will be automatically turned off when the pin is configured as an output pin.

VR pin is reference voltage input pin of the ADC module, this pin does not have I/O function. The voltage on this

pin must not exceed VDD, otherwise it will cause the pin burned down.

Figure 2.3: Block Diagram of I/O Pins

IOA5 ~ IOA0:

IOST

Latch

DATA

Latch

I/O PIN

RD PORT

WR PORT

WR IOST

DATA BUS

Pull-high/ADC control is not shown in this figure

IOB7 ~ IOB4, IOB2 ~ IOB0:

RD PORT

WR PORT

WR IOST

Set PBIF

IOST

Latch

DATA

Latch

I/O PIN

Latch

DATA BUS

PBIENx

Pull-high/ADC/OSC control is not shown in this figure

SYNPWM Scheda tecnica(PDF) 22 Page - Feeling Technology Corp.