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Pin Assignment
Pin assignment of HSMC on the RAID board is listed following table-1.
HSMC
Pin# (*1)
Samtec
Pin#
HSMC
definition
Signal
Name
destination
1
1
TX_P7 HT7P CN7-S2 (TX Pos)
2
2
RX_P7 HR7P CN7-S6 (RX Pos)
3
3
TX_N7 HT7N CN7-S3 (TX Neg)
4
4
RX_N7 HR7N CN7-S5 (RX Neg)
5
7
TX_P6 HT6P CN6-S2 (TX Pos)
6
8
RX_P6 HR6P CN6-S6 (RX Pos)
7
9
TX_N6 HT6N CN6-S3 (TX Neg)
8
10
RX_N6 HR6N CN6-S5 (RX Neg)
9
13
TX_P5 HT5P CN5-S2 (TX Pos)
10
14
RX_P5 HR5P CN5-S6 (RX Pos)
11
15
TX_N5 HT5N CN5-S3 (TX Neg)
12
16
RX_N5 HR5N CN5-S5 (RX Neg)
13
19
TX_P4 HT4P CN4-S2 (TX Pos)
14
20
RX_P4 HR4P CN4-S6 (RX Pos)
15
21
TX_N4 HT4N CN4-S3 (TX Neg)
16
22
RX_N4 HR4N CN4-S5 (RX Neg)
17
25
TX_P3 HT3P CN3-S2 (TX Pos)
18
26
RX_P3 HR3P CN3-S6 (RX Pos)
19
27
TX_N3 HT3N CN3-S3 (TX Neg)
20
28
RX_N3 HR3N CN3-S5 (RX Neg)
21
31
TX_P2 HT2P CN2-S2 (TX Pos)
22
32
RX_P2 HR2P CN2-S6 (RX Pos)
23
33
TX_N2 HT2N CN2-S3 (TX Neg)
24
34
RX_N2 HR2N CN2-S5 (RX Neg)
25
37
TX_P1 HT1P CN1-S2 (TX Pos)
26
38
RX_P1 HR1P CN1-S6 (RX Pos)
27
39
TX_N1 HT1N CN1-S3 (TX Neg)
28
40
RX_N1 HR1N CN1-S5 (RX Neg)
29
43
TX_P0 HT0P CN0-S2 (TX Pos)
30
44
RX_P0 HR0P CN0-S6 (RX Pos)
31
45
TX_N0 HT0N CN0-S3 (TX Neg)
32
46
RX_N0 HR0N CN0-S5 (RX Neg)
156
176
CLKIN2P SCKN (via R1) X1-5 (*2)
158
178
CLKIN2N SCKP (via R2) X1-4 (*2)
Table1: HSMC pin assi nment of AB12-HSMCRAID board
Note
(*1) HSMC Pin# is pin number defined in HSMC standard, while Samtec Pin# is pin number of
connector specification.
(*2) 150MHz SATA reference clock of CLKIN2P/N is reversed in its polarity due to the board trace,
however, this polarity invertion is no problem because differential clock waveform is symmetrical.
