MC68HC908RF2 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

View to exact match

MC68HC908RF2

HCMOS Microcontroller Unit

Motorola => Freescale 

Memory Map

Input/Output Section

Addr. Register Name

Bit 7

$0038

Read:

Internal Clock Generator

Trim Register (ICGTR) Write:

See page 144.

Reset:

TRIM7

1

$0039

ICG DCO Divider Read:

Control Register Write:

R

(ICGDVR)

See page 145. Reset: 0

$003A

Read:

ICG DCO Stage Register

(ICGDSR) Write:

See page 146.

Reset:

DSTG7

$003B

Reserved

R

6

TRIM6

0

R

0

DSTG6

R

5

TRIM5

0

R

0

DSTG5

R

4

3

TRIM4 TRIM3

0

0

R

DDIV3

0

U

DSTG4 DSTG3

Unaffected by reset

R

R

2

TRIM2

0

DDIV2

U

DSTG2

R

1

TRIM1

0

DDIV1

U

DSTG1

R

Bit 0

TRIM0

0

DDIV0

U

DSTG0

R

$003C

↓

$003F

Unimplemented

Unimplemented

Read:

SIM Break Status Register

R

R

$FE00

(SBSR) Write:

See page 99.

Reset:

Note: Writing a logic 0 clears SBSW

Read: POR

PIN

SIM Reset Status Register

$FE01

(SRSR) Write:

See page 100.

POR: 1

X

Read:

SIM Break Flag Control

BCFE

R

$FE02

Register (SBFCR) Write:

See page 101.

Reset: 0

0

$FE03

Reserved

R

R

R

R

R

COP ILOP ILAD

X

X

X

R

R

R

0

0

0

R

R

R

SBSW

R

R

See Note

0

0

LVI

0

X

X

X

R

R

R

0

0

0

R

R

R

= Unimplemented

R = Reserved U = Unaffected X = Indeterminate

Figure 2-2. Control, Status, and Data Registers (Sheet 4 of 6)

MC68HC908RF2 — Rev. 1

MOTOROLA

Memory Map

Advance Information

39

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