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Serial Communication Controllers (SCCs)
MC68360 USER’S MANUAL
Table 7-11. Ethernet-Specific Parameters
Address
Name
Width
Description
User Writes
SCC Base + 30
C_PRES
Long
Preset CRC
$FFFFFFFF
SCC Base + 34
C_MASK
Long
Constant MASK for CRC
$DEBB20E3
SCC Base + 38
CRCEC
Long
CRC Error Counter
SCC Base + 3C
ALEC
Long
Alignment Error Counter
SCC Base + 40
DISFC
Long
Discard Frame Counter
SCC Base + 44
PADS
Word
Short Frame PAD character
SCC Base + 46
RET_Lim
Word
Retry Limit Threshold
15 dec
SCC Base + 48
RET_cnt
Word
Retry Limit Counter
SCC Base + 4A
MFLR
Word
Maximum Frame Length Register
1518 dec
SCC Base + 4C
MINFLR
Word
Minimum Frame Length Register
64 dec
SCC Base + 4E
MAXD1
Word
Max DMA1 Length Register
1518 dec
SCC Base + 50
MAXD2
Word
Max DMA2 Length Register
1518 dec
SCC Base + 52
MAXD
Word
Rx Max DMA
SCC Base + 54
DMA_cnt
Word
Rx DMA Counter
SCC Base + 56
MAX_b
Word
Max BD Byte Count
SCC Base + 58
GADDR1
Word
Group Address Filter 1
SCC Base + 5A
GADDR2
Word
Group Address Filter 2
SCC Base + 5C
GADDR3
Word
Group Address Filter 3
SCC Base + 5E
GADDR4
Word
Group Address Filter 4
SCC Base + 60
TBUF0.data0
Long
Save Area 0 - Current Frame
SCC Base + 64
TBUF0.data1
Long
Save Area 1 - Current Frame
SCC Base + 68
TBUF0.rba0
Long
SCC Base + 6C
TBUF0.crc
Long
SCC Base + 70
TBUF0.bcnt
Word
SCC Base + 72
PADDR1_L
Word
Physical Address 1 (LSB)
SCC Base + 74
PADDR1_M
Word
Physical Address 1
SCC Base + 76
PADDR1_H
Word
Physical Address 1 (MSB)2
SCC Base + 78
P_Per
Word
Persistence
SCC Base + 7A
RFBD_ptr
Word
Rx First BD Pointer
SCC Base + 7C
TFBD_ptr
Word
Tx First BD Pointer
SCC Base + 7E
TLBD_ptr
Word
Tx Last BD Pointer
SCC Base + 80
TBUF1.data0
Long
Save Area 0 - Next Frame
SCC Base + 84
TBUF1.data1
Long
Save Area 1 - Next Frame
SCC Base + 88
TBUF1.rba0
Long
SCC Base + 8C
TBUF1.crc
Long
SCC Base + 90
TBUF1.bcnt
Word
SCC Base + 92
TX_len
Word
Tx Frame Length Counter
SCC Base + 94
IADDR1
Word
Individual Address Filter 1
SCC Base + 96
IADDR2
Word
Individual Address Filter 2
SCC Base + 98
IADDR3
Word
Individual Address Filter 3
SCC Base + 9A
IADDR4
Word
Individual Address Filter 4
SCC Base + 9C
BOFF_CNT
Word
Backoff Counter
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Freescale Semiconductor, Inc.
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