Instruction Manual

AT8901M Hardware Description
Page 3 - 9 AT8901M User Guide
3.3 AMC Bays
Two AMC bays for standard or custom AMCs mid-size and single width are implemented with
B+ connectors, which are compliant to the AMC.0 R1.0 specification.
Following AMC Geographic Addresses are implemented:
Table 3-9: AMC Bay Address
The state of each GA signal is represented by G (grounded), U (unconnected) or P (pulled up
to management power).
AMC AMC Bay ID GA [2..0] IPMB-L Address
1B1 UGU 7Ah
2 B2 UUG 7Ch
Table 3-10: AMC B1 Channel Assignment
Channel Region Connection
0 GbE Local Base Switch 0/21
1 GbE Remote Base Switch 0/22
2 SATA/FC AMC B2, channel 2
3 SATA/FC RTM, STOR0
4Fabric -
5Fabric -
6Fabric -
7Fabric -
8Fabric -
9Fabric -
10 Fabric -
11 Fabric -
12 Extended -
13 Extended RTM, AMC_B1_P13
14 Extended RTM, AMC_B1_P14
15 Extended RTM, AMC_B1_P15
17 Extended RTM, AMC_B1_P17
18 Extended RTM, AMC_B1_P18
19 Extended RTM, AMC_B1_P19
20 Extended RTM, AMC_B1_P20
TCLKA Clock From backplane CLK3A
TCLKB Clock To backplane CLK2A or CLK2B
TCLKC Clock From backplane CLK3B