UPDATE TO
MC68306 Integrated EC000 Processor User’s Manual
MC68306
1995 Motorola, Inc. All Rights Reserved.
Microprocessor and Memory
Technologies Group
SEMICONDUCTOR PRODUCT INFORMATION
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
October 7, 1995
This update to the initial release of the MC68306UM/AD User’s Manual and the MC68306UMAD/AD User’s
Manual Addendum provides corrections to the original text, plus additional information not included in the orig-
inal. This document and other information on this product is maintained on the AESOP BBS, which can be
reached at (800)843-3451 (from the US and Canada) or (512)891-3650. Configure the modem for up to 14.4K
baud, 8 bits, 1 stop bit, and no parity. Terminal software should support VT100 emulation. Internet access is
provided by telneting to pirs.aus.sps.mot.com [129.38.233.1] or through the World Wide Web at http://
pirs.aus.sps.mot.com.
1. System Register Naming Conventions
In section 5, pages 5-1 through 5-17, none of the registers have standardized abbreviations. Below is a table
which provides the abbreviated names for all of the MC68306 system registers. These are the standard
names that will be used in assembly and C header files. Some registers have 32-bit names and two 16-bit
names which overlap the upper and lower, (High and Low) 16 bits of the register.
Address Abbreviation Name
FFFFFFC0/1/2/3
CSC0 Chip Select Configuration Register 0
FFFFFFC0/1
CSC0H Chip Select Configuration Register 0 (High Half)
FFFFFFC2/3
CSC0L Chip Select Configuration Register 0 (Low Half)
FFFFFFC4/5/6/7
CSC1 Chip Select Configuration Register 1
FFFFFFC4/5
CSC1H Chip Select Configuration Register 1 (High Half)
FFFFFFC6/7
CSC1L Chip Select Configuration Register 1 (Low Half)
FFFFFFC8/9/A/B
CSC2 Chip Select Configuration Register 2
FFFFFFC8/9
CSC2H Chip Select Configuration Register 2 (High Half)
FFFFFFCA/B
CSC2L Chip Select Configuration Register 2 (Low Half)
FFFFFFCC/D/E/F
CSC3 Chip Select Configuration Register 3
FFFFFFCC/D
CSC3H Chip Select Configuration Register 3 (High Half)
FFFFFFCE/F
CSC3L Chip Select Configuration Register 3 (Low Half)
FFFFFFD0/1/2/3
CSC4 Chip Select Configuration Register 4
FFFFFFD0/1
CSC4H Chip Select Configuration Register 4 (High Half)
FFFFFFD2/3
CSC4L Chip Select Configuration Register 4 (Low Half)
FFFFFFD4/5/6/7
CSC5 Chip Select Configuration Register 5
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