MC68L11K0FN1 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC68L11K0FN1

8-Bit Microcontroller

Freescale Semiconductor 

Freescale Semiconductor, Inc.

3 On-Chip Memory

In general, K-series MCUs have 768 bytes RAM, 640 bytes EEPROM, and 24 Kbytes ROM/EPROM.

Some devices in the series have portions of their memory resources disabled. Some have ROM and

some have EPROM replacing ROM. The following paragraphs describe the memory systems of devices

in the series.

3.1 Memory Map and Register Block

The INIT, INIT2, and CONFIG registers control the presence and location of the registers, RAM, EE-

PROM, and ROM/EPROM in the 64 Kbyte CPU address space. The 128-byte register block originates

at $0000 after reset and can be placed at any 4 Kbyte boundary ($x000) after reset by writing an ap-

propriate value to the INIT register. Refer to Figure 4.

$0000

EXT

$1000

x000

128-BYTE REGISTER BLOCK

(CAN BE REMAPPED TO ANY

x07F 4K PAGE BY THE INIT REGISTER)

EXT

x080 768 BYTES RAM

(CAN BE REMAPPED TO ANY

x37F 4K PAGE BY THE INIT REGISTER)

EXT

EXT

$A000

$FFFF

SINGLE

CHIP

EXPANDED BOOTSTRAP

SPECIAL

TEST

xD00

xD7F

xD80

xFFF

A000

FFFF

RESERVED (SPECIAL TEST MODE ONLY)

640 BYTES EEPROM

(CAN BE REMAPPED TO ANY

4K PAGE BY THE INIT2 REGISTER)

BE00

BOOT ROM

(ONLY PRESENT IN

BOOTSTRAP MODE)

BFC0 SPECIAL MODE

INTERRUPT

BFFF VECTORS

24 KBYTES ROM/EPROM

(CAN BE REMAPPED TO $2000–$7FFF OR

$A000–$FFFF BY THE CONFIG REGISTER)

FFC0 NORMAL MODE

INTERRUPT

FFFF VECTORS

NOTE: ROM/EPROM can be enabled in special test mode by setting ROMON bit in the config register after reset.

Figure 4 Memory Map

MOTOROLA

14

For More Information On This Product,

Go to: www.freescale.com

M68HC11 K Series

MC6HC11KTS/D

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