10

MLC852P Technical Summary

MEGAWIN

TK12, TK11 and TK10: select timer 1 input clock source.

TK12

TK11

TK10

Selected TM1 input clock source

0

0

0

0

0

1

0

1

0

0

1

1

1

0

0

Fosc/128

1

0

1

P0.6

1

1

0

Un-used

1

1

1

Un-used

Note that, if P0.6 is selected as the timer clock, user must configure the pin P0.6 as an input.

I/O Ports

Port 0

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

R

W

1208H

P0

P07

P06

P05

P04

P03

P02

P01

P00

√

√

1209H

P0DIR

DIR7

DIR6

DIR5

DIR4

DIR3

DIR2

DIR1

DIR0

√

√

120AH

P0CONF

CON7

CON6

CON5

CON4

CON3

CON2

CON1

CON0

√

√

120BH

P0PULL

STR7

STR6

STR5

STR4

STR3

STR2

STR1

STR0

√

√

120CH

P0STB

STB7

STB6

STB5

STB4

STB3

STB2

STB1

STB0

√

√

Port 0 is an 8-bit I/O port. Each pin can be programmed as input or output individually.

P0 (Port 0 buffer)

When Port0.n is configured as an output pin, the Port0.n pin would output the logic content of P0.n. Whether

the Port0.n is configured as an input or an output pin, reading P0.n would always read the logic value from pad.

P0DIR (Port 0 Direction)

P0DIR.n = 0: P0.n is configured as an input pin. (Default)

P0DIR.n = 1: P0.n is configured as an output pin.

P0CONF (Port 0 pull-high/CMOS/NMOS setting)

When P0DIR.n is 0 (input mode),

P0CONF.n =

0: The weak internal pull-high resistor of P0.n is enabled. (Default)

P0CONF.n =

1: The weak internal pull-high resistor of P0.n is disabled.

When P0DIR.n is 1 (output mode),

P0CONF.n =

0: P0.n is a CMOS output pin. (Default)

P0CONF.n =

1: P0.n is a NMOS output pin.

P0PULL (Port 0 pull-high resistor selection)

P0PULL.n =

0: The strong pull-high resistor of P0.n is disabled. (Default)

P0PULL.n =

1: The strong pull-high resistor of P0.n is enabled.