Intel IQ80219 manual Detail Descriptions of Switches/Jumpers, Switch S7E1- 2/3

Intel® IQ80219 General Purpose PCI Processor Evaluation Platform

Hardware Reference Section

3.10.9Detail Descriptions of Switches/Jumpers

3.10.9.1Switch S7E1- 2/3

Table 36.	Switch S7E1- 2/3: General Descriptions
	Switch	Association	Description	Factory Default
	S7E1-2	IOP	RST_MODE: Sets IOP Reset-Mode operation.	Off
	S7E1-3	IOP	RETRY: Sets IOP RETRY-Mode operation.	Off

3.10.9.1.1S7E1-2: RST_MODE

RESET MODE is latched at the de-asserting edge of P_RST# and it determines when the 80219 is held in reset until the Intel XScale® core Reset bit is cleared in the PCI Configuration and Status Register.

Table 37. Switch S7E1-2: RST_MODE: Settings and Operation Mode

S7E1-2		Operation Mode
Off	1	Pulled Up: Don't hold in reset (Default mode).
On	0	Pulled Down: Hold in reset.

3.10.9.1.2S7E1-3: RETRY

RETRY is latched at the de-asserting edge of P_RST# and it determines when the Primary PCI interface disable PCI configuration cycles by signaling a Retry until the Configuration Cycle Retry bit is cleared in the PCI Configuration and Status Register.

Table 38. Switch S7E1-3: RETRY: Settings and Operation Mode

S7E1-3		Operation Mode
Off	1	Pulled Up: Retry enabled (Default mode).
On	0	Pulled Down: Configuration Cycles enabled.

3.10.9.1.3Operation Setting Summary Descriptions

Table 39.	RST_MODE and RETRY Operation Setting Summary
					Intel® 80219
	RST_MODE	RETRY	Init Mode	Primary PCI Interface	General Purpose
					PCI Processorr
	0	0	Mode 0	Accepts Transactions	Held in Reset
	0	1	Mode 1	Retries all Config Transactions	Held in Reset
	1	0	Mode 2	Accepts Transactions	Initializes
	1	1	Mode 3 (default)	Retries all Config Transactions	Initializes

Board Manual 57