MC68000 MOTOROLA [Motorola, Inc], MC68000 Datasheet - Page 46

• Manufacturer Part Number: MC68000
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68000/MC68008 Core
In addition to the internal dual-port RAM, a number of internal registers support the functions
of the various M68000 core peripherals. The internal registers (see Table 2-9) are memory-
mapped registers offset from the BAR point1616er and are located on the internal M68000
bus.
2-16
## Tx BD 4, 5, 6, and 7 are not initially available to SCC3. (See 4.5.5 Buffer Descriptors Table for
information on how they may be regained.)
# Modified by the CP after a CP or system reset.
Base + 66E #
Base +67E #
Base + 5BF
Base + 5C0
Base + 5FF
Base + 66A
Base + 66C
Base + 6BF
Base + 6C0
Base + 7FF
Base + 580
Base + 600
Base + 608
Base + 610
Base + 618
Base + 620
Base + 628
Base + 630
Base + 638
Base + 640
Base + 648
Base + 650
Base + 658
Base + 660
Base + 666
Base + 668
Base + 680
Base +67C
Base +67A
•
•
•
•
•
•
•
•
•
•
•
•
6 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
4 Word
3 Word
Word
Word
Word
Word
Word
Word
Word
Table 2-8. Parameter RAM
MC68302 USER’S MANUAL
SMC1–SMC2
SCC1–SCC3
SCC2
SCC2
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC3
SCC1
SCC1
SCC2
SCC2
SCC3
SCC3
SMC
SCP
CP
Specific Protocol Parameters
Specific Protocol Parameters
MC68302 Revision Number
BERR Channel Number
(Not Implemented)
(Not Implemented)
Internal Use
TxBD3 ##
Reserved
Reserved
Reserved
Rx/TxBD
RxBD0
RxBD1
RxBD2
RxBD3
RxBD4
RxBD5
RxBD6
RxBD7
TxBD0
TxBD1
TxBD2
RxBD
RxBD
TxBD
TxBD
MOTOROLA