Altima AC101 Series, Manual, Page: 44 / 64

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AC101 Preliminary Data Sheet
06/04/01
B r o a d c o m
Page 34 SMI Read/Write Sequence Document AC101-DS01-405-R¥¥¥¥¥
SMI R
EAD
/W
RITE
S
EQUENCE
10001 K 0101 Start of stream delimiter, part 2 of 2; always use
in pair with J symbol.
01101 T Undefined End of stream delimiter, part 1 of 2; always use in
pair with R symbol.
00111 R Undefined End of stream delimiter, part 2 of 2; always use in
pair with T symbol.
Invalid Code
00100 H Undefined Transmit Error; used to send HALT code-group
00000 V Undefined Invalid code
00001 V Undefined Invalid code
00010 V Undefined Invalid code
00011 V Undefined Invalid code
00101 V Undefined Invalid code
00110 V Undefined Invalid code
01000 V Undefined Invalid code
01100 V Undefined Invalid code
10000 V Undefined Invalid code
11001 V Undefined Invalid code
Table 30: SMI Read/Write Sequence
Pream
(32 bits)
Start
(2 bits)
OpCode
(2 bits)
PHYAD
(5 bits)
REGAD
(5 bits)
TurnAround
(2 bits)
Data
(16 bits)
Idle
Read 1…1 01 10 AAAAA RRRRR Z0 D…D Z
Write 1…1 01 01 AAAAA RRRRR 10 D…D Z
Table 29: 4B/5B Code-Group Table (Cont.)
PCS Code Group
[4 3 2 1 0]
SYMBOL Name
MII (TXD/RXD [3:0])
[3 2 1 0]
Description