Kontron AT8404 - Manual (Page 106)

Software Description
93 AT8404 User Guide
www.kontron.com
4.5.2.1 Clock ekeying
Endpoint for the clock match finder has to be set in indirect clock configuration. This setting is required for
the match finder to enable the clock source on AMC.
The settings of the indirect clock configuration is stored in NV-memory and is restored after powerup.
Figure 4-5: Clock ekeying
4.5.3 Examples
4.5.3.1 Example 1
Configure clock from AMC B1 TCLKB (8kHz) to be driven to backplane CLK3A.
Configure clock from AMC B2 TCLKB (8kHz) to be driven to backplane CLK3B.
1. Configure MUX (domain 1) for AMC B1
(Ethernet Fabric) #set board clock mux-bpl clk3a amcb1 tclkb
2. Set indirect clock descriptor (necessary for clock ekeying match finder)
(Ethernet Fabric) #set board clock receiver amcb1 tclkb enable sonet stratum3E 8kHz
AMC
TCLKB
TCLKD
Direct Clk conf
Direct Clk conf
MUX (Domain 0)
AMC
TCLKB
TCLKD
Direct Clk conf
Direct Clk conf
AMC
TCLKB
TCLKD
Direct Clk conf
Direct Clk conf
AMC
TCLKB
TCLKD
Direct Clk conf
Direct Clk conf
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 1
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 2
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 3
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 4
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 5
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 6
Indirect Clk cfg
(CLK E-Keying)
Resource 5
Clock 7
Indirect Clk cfg (CLK
E-Keying)
Resource 5
Clock 8
CLK1A Buffer
CLK1B Buffer
CLK2A Buffer
CLK2B Buffer
CLK3A Buffer
CLK3B Buffer