Board Manual 51
Intel® IQ80321 I/O Processor E valuation Platform
Hardware Reference Section
3.9 Board Reset SchemeFigure 15 depicts the reset scheme for the IQ80 321. Table 2 3 list the reset schemes for the IQ80 321.
Table 23. Reset Requirements/Schemes
Description
Primary PCI reset, resets all d evices on the board. It occ urs during the power-up.
The SRST signal from the JTAG connec tor is a bi-directional sign al that can force a reset sim ilar to the
power-up reset on the board.
Figure 15. RESET Sources
A9458-02
Switch S1H2: Push Button Reset
Jumper J102
SV-2
Circuit
Reset from Primary
PCI-X Connector
Reset Secondary PCI-X Reset
P-Bus Reset
To PCI-X
Bridge
Reset
SV-1
Circuit
SV-3
Circuit
SV-4
Circuit To Intel® 80321
TRST Pin
SRST Signal
from/to JTAG
Emulator
TRST Signal
from JTAG
Emulator
JTAG Connector
PCI-X
Bridge
Intel® 82544 GbE
PCI-X Connector
UART
FLASH
Intel 80321
I/O Processor
Note: SV - Supervisory