AT8901M
Hardware Description
Page 3 - 17
AT8901M User Guide
3.8
Reset
The reset chain is based on seven elements. The first element in the chain is the voltage supply
monitor, followed by the CPLD, FUM, IPMC, Payload voltage, PPC and Base Interface and fi-
nally the Fabric Interface.
The reset switch will perform a reset on the CPU when pressed for less than 1 second and a
complete board reset (including IPMI) when pressed for more than 2 seconds.
3.9
Jumpers
Five jumpers in the upper right corner allow debug settings (J11). The IPMI override jumpers
enable bypassing communication with the ShMC for bench operation. The JTAG jumpers con-
figure the boundary scan path. JTAG operation requires the use of an RTM.
Warning!
Operation with any of these jumpers set is not supported by the standard appli-
cation software.
Table 3-16: Jumper Settings (
•
Default Setting)
FWPD - Flash Write Enable
Write Enable
in
•
Write Protect
out
IPMC0 - Front Board IPMI Override
ShMC Bypass
in
•
Normal Operation
out
IPMC1 - AMC IPMI Override
ShMC Bypass
in
•
Normal Operation
out
JTAG_AMC - AMC JTAG Integration
Included in JTAG Chain
in
•
Excluded from JTAG Chain
out
JTAG_IPMC - IPMC JTAG
Restrict JTAG to IPMC
in
•
Normal JTAG Operation
out
Summary of Contents for AdvancedTCA AT8901M
Page 1: ...AT8901M USER GUIDE AdvancedTCA 3 5 Revision Index February 2009 Date of Issue...
Page 14: ...AT8901M Introduction Page 1 1 AT8901M User Guide Introduction Chapter 1...
Page 25: ...Installation Chapter 2 Page 2 1 AT8901M User Guide AT8901M Installation...
Page 31: ...Hardware Description Chapter 3 Page 3 1 AT8901M User Guide AT8901M Hardware Description...
Page 51: ...Software Description Page 4 1 AT8901M User Guide AT8901M Software Description Chapter 4...
Page 72: ...AT8901M Getting Help Page A 1 AT8901M User Guide Getting Help Appendix A...
