
Serial Communication Controllers (SCCs)
MOTOROLA
MC68360 USER’S MANUAL
7-247
Table 7-11. Ethernet-Specific Parameters
Address
SCC Base + 30
SCC Base + 34
SCC Base + 38
SCC Base + 3C
SCC Base + 40
SCC Base + 44
SCC Base + 46
SCC Base + 48
SCC Base + 4A
SCC Base + 4C
SCC Base + 4E
SCC Base + 50
SCC Base + 52
SCC Base + 54
SCC Base + 56
SCC Base + 58
SCC Base + 5A
SCC Base + 5C
SCC Base + 5E
SCC Base + 60
SCC Base + 64
SCC Base + 68
SCC Base + 6C
SCC Base + 70
SCC Base + 72
SCC Base + 74
Name
C_PRES
C_MASK
CRCEC
ALEC
DISFC
PADS
RET_Lim
RET_cnt
MFLR
MINFLR
MAXD1
MAXD2
MAXD
DMA_cnt
MAX_b
GADDR1
GADDR2
GADDR3
GADDR4
TBUF0.data0
TBUF0.data1
TBUF0.rba0
TBUF0.crc
TBUF0.bcnt
PADDR1_L
PADDR1_M
Width
Long
Long
Long
Long
Long
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Long
Long
Long
Long
Word
Word
Word
Description
User Writes
$FFFFFFFF
$DEBB20E3
Preset CRC
Constant MASK for CRC
CRC Error Counter
Alignment Error Counter
Discard Frame Counter
Short Frame PAD character
Retry Limit Threshold
Retry Limit Counter
Maximum Frame Length Register
Minimum Frame Length Register
Max DMA1 Length Register
Max DMA2 Length Register
Rx Max DMA
Rx DMA Counter
Max BD Byte Count
Group Address Filter 1
Group Address Filter 2
Group Address Filter 3
Group Address Filter 4
Save Area 0 - Current Frame
Save Area 1 - Current Frame
15 dec
1518 dec
64 dec
1518 dec
1518 dec
Physical Address 1 (LSB)
Physical Address 1
SCC Base + 76
PADDR1_H
Word
Physical Address 1 (MSB)
2
Persistence
Rx First BD Pointer
Tx First BD Pointer
Tx Last BD Pointer
Save Area 0 - Next Frame
Save Area 1 - Next Frame
SCC Base + 78
SCC Base + 7A
SCC Base + 7C
SCC Base + 7E
SCC Base + 80
SCC Base + 84
SCC Base + 88
SCC Base + 8C
SCC Base + 90
SCC Base + 92
SCC Base + 94
SCC Base + 96
SCC Base + 98
SCC Base + 9A
SCC Base + 9C
P_Per
RFBD_ptr
TFBD_ptr
TLBD_ptr
TBUF1.data0
TBUF1.data1
TBUF1.rba0
TBUF1.crc
TBUF1.bcnt
TX_len
IADDR1
IADDR2
IADDR3
IADDR4
BOFF_CNT
Word
Word
Word
Word
Long
Long
Long
Long
Word
Word
Word
Word
Word
Word
Word
Tx Frame Length Counter
Individual Address Filter 1
Individual Address Filter 2
Individual Address Filter 3
Individual Address Filter 4
Backoff Counter