Kontron AT8404 - Manual (Page 37)

Hardware Description
24 AT8404 User Guide
www.kontron.com
3.1.5 Synchronous Clock Distribution
An FPGA is the global clock distribution device on the carrier board. In conjunction with the Telecom Clock
protection switch, the FPGA distributes all necessary Telecom Clocks to or from the AMCs and the backplane.
TCLKA and TCLKC of any AMC can be driven by any backplane clock (CLK1A/B, CLK2A/B or CLK3A/B). TCLKB and
TCLKD of any AMC can drive any backplane clock. Any ATCA backplane clock can be used as the reference clock
input.
For more information on how to configure the clock distribution, refer to the AT8404 CLI Reference Manual.
3.1.6 AMC Bays
Up to four mid-size and single width or up to two mid-size and double width AMC bays for standard or custom
AMCs are implemented with B+ AMC connectors, depending on the board option.
Because of the AMC slot storage interconnects (see section 3.1.2. Storage Interconnect) and for thermal rea-
sons, the preferred Processor AMC slots are B1 and B2 and the preferred HDD-AMC slots are B3 and B4.
Table 3-7: AMC Slot Types
Board option B1 B2 B3 B4
A Single width Single width Single width Single width
B - Double width - Double width
C - Double width Single width Single width
D Single width Single width - Double width
Table 3-8: AMC B1 Port Assignment
Port Region Connection
0 GbE GbE Switch 0/5
1 GbE -
2 Storage AMC B3 Port 2
3 Storage AMC B4 Port 2 / -*
4 Fabric AMC B2 Port 4
5 Fabric AMC B2 Port 5
6 Fabric AMC B2 Port 6
7 Fabric AMC B2 Port 7
8 Fabric GbE Switch 0/1
9 Fabric GbE Switch 0/2
10 Fabric GbE Switch 0/3
11 Fabric GbE Switch 0/4
12 Extended Update, APS Channel
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