MC68HC908AP16CFB datasheet(38/440 Pages) MOTOROLA

38 / 440 page

Memory Map

Data Sheet

MC68HC908AP Family — Rev. 2.5

MOTOROLA

Addr.

Bit 7

654321

Bit 0

$0000

Port A Data Register

(PTA)

Read:

PTA7

PTA6

PTA5

PTA4

PTA3

PTA2

PTA1

PTA0

Write:

Reset:

Unaffected by reset

$0001

Port B Data Register

(PTB)

Read:

PTB7

PTB6

PTB5

PTB4

PTB3

PTB2

PTB1

PTB0

Write:

Reset:

Unaffected by reset

$0002

Port C Data Register

(PTC)

Read:

PTC7

PTC6

PTC5

PTC4

PTC3

PTC2

PTC1

PTC0

Write:

Reset:

Unaffected by reset

$0003

Port D Data Register

(PTD)

Read:

PTD7

PTD6

PTD5

PTD4

PTD3

PTD2

PTD1

PTD0

Write:

Reset:

Unaffected by reset

$0004

Data Direction Register A

(DDRA)

Read:

DDRA7

DDRA6

DDRA5

DDRA4

DDRA3

DDRA2

DDRA1

DDRA0

Write:

Reset:

00000000

$0005

Data Direction Register B

(DDRB)

Read:

DDRB7

DDRB6

DDRB5

DDRB4

DDRB3

DDRB2

DDRB1

DDRB0

Write:

Reset:

00000000

$0006

Data Direction Register C

(DDRC)

Read:

DDRC7

DDRC6

DDRC5

DDRC4

DDRC3

DDRC2

DDRC1

DDRC0

Write:

Reset:

00000000

$0007

Data Direction Register D

(DDRD)

Read:

DDRD7

DDRD6

DDRD5

DDRD4

DDRD3

DDRD2

DDRD1

DDRD0

Write:

Reset:

00000000

$0008

Unimplemented

Read:

Write:

Reset:

$0009

Unimplemented

Read:

Write:

Reset:

U = Unaffected

X = Indeterminate

= Unimplemented

= Reserved

Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 12)

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MC68HC908AP16CFB Datasheet(PDF) 38 Page - Motorola, Inc

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