PM5945 데이터 시트보기 (PDF) - PMC-Sierra
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PM5945 Datasheet PDF : 75 Pages
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S TANDARD PRODUCT
PMC-Sierra, Inc.
PM5945 SAPI
PMC-940106 ISSUE 3, May 16, 1994
SAPI DAUGHTERBOARD
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5. TxXon, =1 when this interface supports the TxXon UTOPIA signal.
6. Ver[3:0], 4 bits UTOPIA version number, value for this specification =1.
7. D16, =1 to indicate 16-bit datapath, 0 = 8-bit datapath.
8. HEC, =1 to indicate the HEC is carried in the UDF(1) field.
9. HCS, =1 to indicate HCS is carried in the UDF(2) field, for 16-bit mode
only.
10. NOTE "rsvd" stands for Reserved.
Assignments of fields are shown below.
rsvd HCS HEC D16
Ver[3] Ver[2] Ver[1] Ver[0] octet 1
rsvd rsvd rsvd TxXon RxClav TxClav RxRef TxRef octet 2
64 or 48-bit Address:
Contains eight octets which define the 64 or 48-bit address of the PHY interface.
If a 48-bit address is used, the 2 most significant octets are zero filled. The
address is stored in Big-Endian format (MSB is in the LS address). The SAPI
board has 0x00 programmed into this location.
Reserved:
Reserved for future expansion.
Manufacturer ID, etc.:
Contains sixteen octets which identify the manufacturer of the PHY interface.
Using the ASCII character set (7-bit code) is encouraged. Three octets of ASCII
representing the manufacture ID and 13 octets of part number.
M.S
0
1
2
3
4
5
6
7
L.S
0
NUL
DLE
SP
0
@
P
\
p
1
SOH
DC1
!
1
A
Q
a
q
2
STX
DC2
"
2
B
R
b
r
3
ETX
DC3
#
3
C
S
c
s
4
EOT
DC4
$
4
D
T
d
t
5
ENQ NAK
%
5
E
U
e
u
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7
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