Intel IQ80321 manual Board Reset Scheme, Reset Requirements/Schemes, Reset Sources

Intel® IQ80321 I/O Processor Evaluation Platform

Hardware Reference Section

3.9Board Reset Scheme

Figure 15 depicts the reset scheme for the IQ80321. Table 23 list the reset schemes for the IQ80321.

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
	Switch S1H2: Push Button Reset
			SV-1
			Circuit
					SV-3	To PCI-X
				SV-2	Circuit
						Bridge
		Jumper J102		Circuit
						Reset
	Reset from Primary
	PCI-X Connector			JTAG Connector	SRST Signal
				TRST Signal	from/to JTAG
					Emulator
				from JTAG
				Emulator
			SV-4			To Intel® 80321
			Circuit			TRST Pin
					Intel® 82544 GbE
	Reset	PCI-X	Secondary PCI-X Reset		PCI-X Connector
		Bridge
					UART
		Intel 80321		P-Bus Reset	FLASH
		I/O Processor
	Note: SV - Supervisory
						A9458-02
Board Manual						51