Intel IQ80219 - Manual (Page 51)

Board Manual 51
Intel® IQ80219 General Purpose PCI Processor Evaluation Platform
Hardware Reference Section
3.9 Board Reset Scheme
Figure 15 depicts the reset scheme for the IQ80219. Table 23 list the reset schemes for the IQ80219.
Table 23. Reset Requirements/Schemes
Description
Primary PCI reset, resets all devices on the board. It occurs during the power-up.
The SRST signal from the JTAG connector is a bi-directional signal that can force a reset similar to the
power-up reset on the board.
Figure 15. RESET Sources
B2836-01
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 ® 80219
General Purpose PCI
Processor TRST Pin
SRST Signal
from/to JTAG
Emulator
TRST Signal
from JTAG
Emulator
JTAG Connector
PCI-X
Bridge
Intel fi 82544 GbE
PCI-X Connector
UART
FLASH
Intel 80219
General Purpose
PCI Processor
Note: SV - Supervisory