8 board reset scheme, Table 14. reset requirements/schemes, Figure 10. reset sources – Intel IQ80333 User Manual
Page 37: Ddr ii sdram, Pci-x con a pci-x con b jtag con, Pci-e con
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Customer Reference Board Manual
37
Hardware Reference Section
3.8
Board Reset Scheme
depicts the reset scheme for the 80333.
list the reset schemes for the 80333.
Table 14.
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 10.
RESET Sources
DDR II SDRAM
Intel® 80333 I/O
Processor
PCI-X Con A
PCI-X Con B
JTAG
Con
Debounce
CPLD
A_RST#
B_RST#
RST#
LAN_PWR_GOOD
PWRGD
TRST
#
SRST
#
Power
Delay
RESETIN
#
Reset
Button
82545EM
TRST
#
M_RST#
PWRDELAY
PCI-E Con
Pwrgood
Isolation
Voltage
Monitor
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