Freescale Semiconductor 56F8122 User Manual

Page 45

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Peripheral Memory Mapped Registers

56F8322 Technical Data, Rev. 10.0

Freescale Semiconductor

45

Preliminary

Table 4-20 Clock Generation Module Registers Address Map

(CLKGEN_BASE = $00 F2D0)

Register Acronym

Address Offset

Register Description

PLLCR

$0

Control Register

PLLDB

$1

Divide-By Register

PLLSR

$2

Status Register

Reserved

SHUTDOWN

$4

Shutdown Register

OSCTL

$5

Oscillator Control Register

Table 4-21 GPIOA Registers Address Map

(GPIOA_BASE = $00 F2E0)

Register Acronym

Address Offset

Register Description

Reset Value

GPIOA_PUR

$0

Pull-up Enable Register

0 x 0FFF

GPIOA_DR

$1

Data Register

0 x 0000

GPIOA_DDR

$2

Data Direction Register

0 x 0000

GPIOA_PER

$3

Peripheral Enable Register

0 x 0FFF

GPIOA_IAR

$4

Interrupt Assert Register

0 x 0000

GPIOA_IENR

$5

Interrupt Enable Register

0 x 0000

GPIOA_IPOLR

$6

Interrupt Polarity Register

0 x 0000

GPIOA_IPR

$7

Interrupt Pending Register

0 x 0000

GPIOA_IESR

$8

Interrupt Edge-Sensitive Register

0 x 0000

GPIOA_PPMODE

$9

Push-Pull Mode Register

0 x 0FFF

GPIOA_RAWDATA

$A

Raw Data Input Register

Table 4-22 GPIOB Registers Address Map

(GPIOB_BASE = $00 F300)

Register Acronym

Address Offset

Register Description

Reset Value

GPIOB_PUR

$0

Pull-up Enable Register

0 x 00FF

GPIOB_DR

$1

Data Register

0 x 0000

GPIOB_DDR

$2

Data Direction Register

0 x 0000

GPIOB_PER

$3

Peripheral Enable Register

0 x 00FF

GPIOB_IAR

$4

Interrupt Assert Register

0 x 0000

GPIOB_IENR

$5

Interrupt Enable Register

0 x 0000

GPIOB_IPOLR

$6

Interrupt Polarity Register

0 x 0000

GPIOB_IPR

$7

Interrupt Pending Register

0 x 0000

GPIOB_IESR

$8

Interrupt Edge-Sensitive Register

0 x 0000

GPIOB_PPMODE

$9

Push-Pull Mode Register

0 x 00FF

GPIOB_RAWDATA

$A

Raw Data Input Register

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