34708 datasheet(133/159 Pages) FREESCALE

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Analog Integrated Circuit Device Data



133

Freescale Semiconductor

MC34708

Functional Block Description

SRE[1:0]

15-14

R/W

RESETB

0x0

Slew rate enable

00: slow (default)

01: normal

10: fast

11: very fast

Unused

23-16

0x00

Not available

Table 139. Register 34, GPIOLV1 Control

Name

Bit #

R/W

Reset

Default

Description

DIR

R/W

RESETB

0x0

GPIOLV1directon

0: Input

1: Output

DIN

R/W

RESETB

0x0

Input state of GPIOLV1 pin

0: Input low

1: Input High

DOUT

R/W

RESETB

0x0

Output state of GPIOLV1 pin

0: Output Low

1: Output High

HYS

R/W

RESETB

0x1

Hysteresis

0: CMOS in

1: Hysteresis

DBNC[1:0]

5-4

R/W

RESETB

0x0

GPIOLV1 input debounce time

00: no debounce

01: 10 ms debounce

10: 20 ms debounce

11: 30 mS debounce

INT[1:0]

7-6

R/W

RESETB

0x0

GPIOLV1 interrupt control

00: None

01: Falling edge

10: Rising edge

11: Both edges

PKE

R/W

RESETB

0x0

Pad keep enable

0: Off

1: On

ODE

R/W

RESETB

0x0

Open drain enable

0: CMOS

1: OD

DSE

R/W

RESETB

0x0

Drive strength enable

0: 4.0 mA

1: 8.0 mA

PUE

R/W

RESETB

0x1

Pull-up/down enable

0: pull-up/down off

1: pull-up/down on (default)

PUS[1:0]

13:12

R/W

RESETB

0x3

Pull-up/Pull-down select

00: 10 K pull-down

01: 100 K pull-down

10: 10 K pull-up

11: 100 K pull-up

Table 138. Register 33, GPIOLV0 Control

Name

Bit #

R/W

Reset

Default

Description

34708 Datasheet(PDF) 133 Page - Freescale Semiconductor, Inc

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