Introduction; Mcu Block Diagram - Motorola MC68HC908GP32 Technical Data Manual

MC68HC08GP32
A.2 Introduction
Table A-1. Summary of MC68HC08GP32 and MC68HC908GP32 differences
Memory ($8000–$FDFF)
User vectors ($FFDC–$FFFF)
Registers at $001E and $001F
Registers at $FE08 and $FF7E
Bit 2 at $FE01
Monitor ROM ($FE20–$FF52)
Available Packages
A.3 MCU Block Diagram
Technical Data
398
Freescale Semiconductor, Inc.
This section introduces the MC68HC08GP32, the ROM part equivalent
to the MC68HC908GP32. The entire data book apply to this ROM
device, with exceptions outlined in this appendix.
MC68HC08GP32
32,256 bytes ROM
36 bytes ROM
Mask option registers;
defined by mask; read only.
$001E — MOR2
$001F — MOR1
Not used;
locations are reserved
Not used;
bit is reserved
Used for testing purposes
only.
42-pin SDIP
44-pin QFP
Figure A-1 shows the block diagram of the MC68HC08GP32.
MC68HC08GP32
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MC68HC908GP32
32,256 bytes FLASH
36 bytes FLASH
Configuration registers; write
once after reset.
$001E — CONFIG2
$001F — CONFIG1
FLASH related registers.
$FE08 — FLCR
$FF7E — FLBPR
MODRST: monitor mode
entry by blank reset vector bit.
Used for testing and FLASH
programming/erasing.
40-pin PDIP
42-pin SDIP
44-pin QFP
MC68HC908GP32 MC68HC08GP32
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Rev. 6
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MOTOROLA