HC705C9AGRSSLASHD datasheet(39/157 Pages) NXP

39 / 157 page

General Release Specification

I/O Registers

MC68HC705C9A — Rev. 2.0

Memory

ADDR

ACCESS

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

$0000

PORTA

READ:

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

WRITE:

$0001

PORTB

READ:

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

WRITE:

$0002

PORTC

READ:

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

WRITE

$0003

PORTD

READ:

PD7

PD5

PD4

PD3

PD2

PD1

PD0

WRITE:

$0004

DDRA

READ:

DDRA7

DDRA6

DDRA5

DDRA4

DDRA3

DDRA2

DDRA1

DDRA0

WRITE:

$0005

DDRB

READ:

DDRB7

DDRB6

DDRB5

DDRB4

DDRB3

DDRB2

DDRB1

DDRB0

WRITE:

$0006

DDRC

READ:

DDRC7

DDRC6

DDRC5

DDRC4

DDRC3

DDRC2

DDRC1

DDRC0

WRITE:

$0007

DDRD

(C9A Only)

READ:

DDRD7

DDRD5

DDRD4

DDRD3

DDRD2

DDRD1

DDRD0

WRITE:

$0008

UNUSED

READ:

WRITE:

$0009

UNUSED

READ:

WRITE:

$000A

SPCR

READ:

SPIE

SPE

DWOM

(C9A)

MSTR

CPOL

CPHA

SPR1

SPR0

WRITE:

$000B

SPSR

READ:

SPIF

WCOL

MODF

WRITE:

$000C

SPDR

READ:

SPD7

SPD6

SPD5

SPD4

SPD3

SPD2

SPD1

SPD0

WRITE:

$000D

BAUD

READ:

SCP1

SCP0

SCR2

SCR1

SCR0

WRITE:

$000E

SCCR1

READ:

WAKE

WRITE:

$000F

SCCR2

READ:

TIE

TCIE

RIE

ILIE

RWU

SBK

WRITE:

Figure 2-4. I/O Register Map

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

HC705C9AGRS/D Datasheet(PDF) 39 Page - NXP Semiconductors

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