Intel Itanium 2 Processor Recommended Connections for Unused Pins, Pins/Pin Groups Recommended

Electrical Specifications

Figure 2-7. System Bus Reset and Configuration Timings for Warm Reset

	t-4	t-3	t-2	t-1	t0	t1	t2	t3
BCLK
PWRGOOD
						TA
RESET#
TC	TB						TD
Bus Ratio
(A[21:17]#)							TF
Additional				TE
Configuration
Signals

TA = 1.15 ns minimum; (set up time to BCLK for deassertion edge of RESET#)

TB = 1 ms minimum for warm reset

TC = Bus ratio signals must be asserted no later than RESET#

TD = 2 BCLKs minimum, 3 BCLKs maximum

TE = 4 BCLKs minimum

TF = 2 BCLKs minimum, 3 BCLKs maximum

000777b

2.8Recommended Connections for Unused Pins

Pins that are unused in an application environment (as opposed to testing environment) should be connected to the states listed in Table 2-26. Pins that must be used in an application are stated as such and do not have a recommended state for unused connection.

Table 2-26. Connection for Unused Pins (Sheet 1 of 2)

Pins/Pin Groups	Recommended	Notes
	Connections
AGTL+ pins	H	1, 2
HSTL Clock Signals	Must be used
All Power Signals	Must be used
PWRGOOD	Must be used
TUNER[2:1]	Must be used
TAP Signals
TCK	L	1, 3
TRST#	L	1, 3
TDI	H	1, 3
TDO	H	1, 3
TMS	H	1, 3

Datasheet 35