MC68000 MOTOROLA [Motorola, Inc], MC68000 Datasheet - Page 453
MC68000
Manufacturer Part Number
MC68000
Description
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68000.pdf
(480 pages)
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MOTOROLA
Initialized
Initialized
by User
by User
NOTE: The offset is from the MC68302 base address + ($400 for SCC1, $500 for SCC2, or $600 for SCC3)
NOTE: The offset is from the MC68302 base address + ($400 for SCC1, $500 for SCC2, or $600 for SCC3).
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
General Parameter and Transparent Protocol-Specific RAM for SCCx
Offset
Offset
Table E-1 (b). Transparent Programming Model (Continued)
Hex
Hex
0A
0C
0E
1A
1C
1E
2A
2C
2E
3A
3C
3E
8A
8C
8E
9A
9C
9E
A0
00
02
04
06
08
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
80
82
84
86
88
90
92
94
96
98
Receive and Transmit Buffer Descriptors for SCCx
Rx BD 0 Control/Status
Rx BD 0 Data Count
Rx BD 0 Data Pointer (High Word)
Rx BD 0 Data Pointer (Low Word)
Rx BD 1 Control/Status
Rx BD 1 Data Count
Rx BD 1 Data Pointer (High Word)
Rx BD 1 Data Pointer (Low Word)
Rx BD 2 Control/Status
Rx BD 2 Data Count
Rx BD 2 Data Pointer (High Word)
Rx BD 2 Data Pointer (Low Word)
Rx BD 3 Control/Status
Rx BD 3 Data Count
Rx BD 3 Data Pointer (High Word)
Rx BD 3 Data Pointer (Low Word)
Rx BD 4 Control/Status
Rx BD 4 Data Count
Rx BD 4 Data Pointer (High Word)
Rx BD 4 Data Pointer (Low Word)
Rx BD 5 Control/Status
Rx BD 5 Data Count
Rx BD 5 Data Pointer (High Word)
Rx BD 5 Data Pointer (Low Word)
Rx BD 6 Control/Status
Rx BD 6 Data Count
Rx BD 6 Data Pointer (High Word)
Rx BD 6 Data Pointer (Low Word)
Rx BD 7 Control/Status
Rx BD 7 Data Count
Rx BD 7 Data Pointer (High Word)
Rx BD 7 Data Pointer (Low Word)
Table E-1. (a)Transparent Programming Model
Reserved
Reserved
Rx Internal Data Pointer (High Word)
Tx Internal Data Pointer (High Word)
TX Internal Data Pointer (Low Word)
Rx Internal Data Pointer (Low Word)
RFCR
Rx Internal Byte Count
Tx Internal Byte Count
Name
Rx Internal State
Tx Internal State
MC68360 USER’S MANUAL
Reserved
Reserved
Reserved
Rx Temp
Tx Temp
MRBLR
Name
Rx Internal Buffer No.
Tx Internal Buffer No.
TFCR
Initialized
by User
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Initialized by
Offset
Hex
User
4A
4C
4E
5A
5C
5E
6A
6C
6E
7A
7C
7E
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
SCC Programming Reference
Tx BD 0 Control/Status
Tx BD 0 Data Count
Tx BD 0 Data Pointer (High Word)
Tx BD 0 Data Pointer (Low Word)
Tx BD 1 Control/Status
Tx BD 1 Data Count
Tx BD 1 Data Pointer (High Word)
Tx BD 1 Data Pointer (Low Word)
Tx BD 2 Control/Status
Tx BD 2 Data Count
Tx BD 2 Data Pointer (High Word)
Tx BD 2 Data Pointer (Low Word)
Tx BD 3 Control/Status
Tx BD 3 Data Count
Tx BD 3 Data Pointer (High Word)
Tx BD 3 Data Pointer (Low Word)
Tx BD 4 Control/Status
Tx BD 4 Data Count
Tx BD 4 Data Pointer (High Word)
Tx BD 4 Data Pointer (Low Word)
Tx BD 5 Control/Status
Tx BD 5 Data Count
Tx BD 5 Data Pointer (High Word)
Tx BD 5 Data Pointer (Low Word)
Tx BD 6 Control/Status
Tx BD 6 Data Count
Tx BD 6 Data Pointer (High Word)
Tx BD 6 Data Pointer (Low Word)
Tx BD 7 Control/Status
Tx BD 7 Data Count
Tx BD 7 Data Pointer (High Word)
Tx BD 7 Data Pointer (Low Word)
Offset
Hex
AA
AC
AE
BA
BC
BE
A2
A4
A6
A8
B0
B2
B4
B6
B8
Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Name
E-31
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