MC68HC908JL8CSP 查看數據表（PDF） - Freescale Semiconductor

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MC68HC908JL8CSP

M68HC08 Microcontrollers

Freescale Semiconductor 

Appendix A

MC68HC08JL8

A.1 Introduction

This section introduces the MC68HC08JL8, the ROM part equivalent to the MC68HC908JL8/JK8. The

entire data book applies to this ROM device, with exceptions outlined in this appendix.

Table A-1. Summary of MC68HC08JL8 and MC68HC908JL8 Differences

Memory ($DC00–$FBFF)

User vectors ($FFDC–$FFFF)

Registers at $FE08 and $FFCF

Mask option register ($FFD0)

Monitor ROM

($FC00–$FDFF and $FE10–$FFCE)

Available Packages

MC68HC08JL8

8,192 bytes ROM

36 bytes ROM

Not used;

locations are reserved.

Defined by mask; read only.

$FC00–$FDFF: Not used.

$FE10–$FFCE: Used for testing

purposes only.

20-pin PDIP (MC68HC08JK8)

20-pin SOIC (MC68HC08JK8)

28-pin PDIP

28-pin SOIC

32-pin SDIP

32-pin LQFP

MC68HC908JL8

8,192 bytes FLASH

36 bytes FLASH

FLASH related registers.

$FE08 — FLCR

$FFCF — FLBPR

Read/write FLASH register.

Used for testing and FLASH

programming/erasing.

20-pin PDIP (MC68HC908JK8)

20-pin SOIC (MC68HC908JK8)

28-pin PDIP

28-pin SOIC

32-pin SDIP

32-pin LQFP

A.2 MCU Block Diagram

Figure A-1 shows the block diagram of the MC68HC08JL8.

A.3 Memory Map

The MC68HC08JL8 has 8,192 bytes of user ROM from $DC00 to $FBFF, and 36 bytes of user ROM

vectors from $FFDC to $FFFF. On the MC68HC908JL8, these memory locations are FLASH memory.

Figure A-2 shows the memory map of the MC68HC08JL8.

MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1

Freescale Semiconductor

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