IDT Installation of the EB64H16 Eval Board
EB64H16 Eval Board Manual
2 - 9
January 16, 2007
Notes
Fundamental Reset
There are two types of Fundamental Resets which may occur on the EB64H16 evaluation board:
–
Cold Reset: During initial power-on, the onboard voltage monitor (TLC7733D) will assert the PCI
Express Reset (PERSTN) input pin of the PES64H16.
–
Warm Reset: This is triggered by hardware while the device is powered on. Warm Reset can be
initiated by two methods:
•
Pressing a push-button switch (S1) located on EB64H16 board
•
The host system board IO Controller Hub asserting PERST# signal, which propagates through
the PCIe upstream edge connector of the EB64H16. Note that one can bypass the onboard
voltage monitor (TLC7733D) by moving the shunt from pin 1-2 to pin 2-3 (default) on W1.
Both events cause the onboard voltage monitor (TLC7733D) to assert the PCI Express Reset
(PERSTN) input of the PES64H16 while power is on.
Downstream Reset
The PES64H16 provides a choice of either a software-controlled reset for each downstream port
through GPIO pins or a fundamental reset through PERST#. Selection is made by jumpers described in
Table 2.8.
Port # Jumper
Selection
1
W102
[1-2] Software controlled reset through GPIO6
[2-3] Fundamental reset PERST# (default)
2
W107
[1-2] Software controlled reset through GPIO7
[2-3] Fundamental reset PERST# (default)
3
W108
[1-2] Software controlled reset through GPIO8
[2-3] Fundamental reset PERST# (default)
4
W113
[1-2] Software controlled reset through GPIO9
[2-3] Fundamental reset PERST# (default)
5
W114
[1-2] Software controlled reset through GPIO10
[2-3] Fundamental reset PERST# (default)
6
W119
[1-2] Software controlled reset through GPIO11
[2-3] Fundamental reset PERST# (default)
7
W120
[1-2] Software controlled reset through GPIO12
[2-3] Fundamental reset PERST# (default)
8
W125
[1-2] Software controlled reset through GPIO13
[2-3] Fundamental reset PERST# (default)
9
W126
[1-2] Software controlled reset through GPIO14
[2-3] Fundamental reset PERST# (default)
10
W131
[1-2] Software controlled reset through GPIO15
[2-3] Fundamental reset PERST# (default)
11
W132
[1-2] Software controlled reset through GPIO16
[2-3] Fundamental reset PERST# (default)
12
W137
[1-2] Software controlled reset through GPIO17
[2-3] Fundamental reset PERST# (default)
Table 2.8 Downstream Reset Selection (Part 1 of 2)
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