Sun Microsystems SME5224AUPA-400 manual Propagation Delay, Output Hold Time Specifications

UltraSPARC™-II CPU Module	Advanced Version
400 MHz CPU, 4.0 MB E-Cache	SME5224AUPA-400

Setup and Hold Time Specifications

			400 MHz CPU
			100 MHz UPA
Symbol	Setup Signals and Hold Time Signals	Waveforms	Min	Max	Unit
tH	UPA_DATA [127:0]	1	0.4	–	ns
Hold time	UPA_ADDR [35:0]	1	0.4	–	ns
	UPA_ADDR_VALID, UPA_REQ_IN [2:0],
	UPA_SC_REQ_IN, UPA_DATA_STALL,
	UPA_ECC_VALID, UPA_RESET_L, UPA_XIR_L
	UPA_ECC [15:0]	1	0.4	–	ns
	UPA_S_REPLY [3:0]	1	0.4	–	ns

The following table, "Propagation Delay, Output Hold Time Specifications," specifies the propagation delay and output hold times for the UltraSPARC™–II, 400 MHz CPU, 4.0 Mbyte module with a 4 Mbyte E-cache.

Propagation Delay, Output Hold Time Specifications

			400 MHz CPU
			100 MHz UPA
Symbol	Clock-to-Out Signals and Output-Hold Signals	Waveforms	Min	Max	Unit
tP	UPA_DATA [127:0]	2	–	3.8	ns
Clock-to-	UPA_ADDR [35:0]	2	–	3.1	ns
Out	UPA_ADDR_VALID, UPA_P_REPLY[4:0],
	UPA_REQ_OUT
	UPA_ECC [15:0]	2	–	3.8	ns
tOH	UPA_DATA [127:0]	2	1.1	–	ns
Output-	UPA_ADDR [35:0]	2	1.1	–	ns
Hold	UPA_ADDR_VALID, UPA_P_REPLY[4:0]
	UPA_ECC [15:0]	2	1.1	–	ns

Timing Measurement Waveforms

xx_CLKx_NEG

2.4V

xx_CLKx_NEG 2.4V

xx_CLKx_POS

Data Input

Data Input

tSU	tH
2.0V
tSU	tH
0.8V

1.6V

2.4V

2.0V

0.4V

2.4V

0.8V

0.4V

xx_CLKx_POS

Rising Edge Output

Falling Edge Output

tp

tOH

tp

tOH

2.0V

0.8V

1.6V

2.4V

2.0V

0.8V

0.4V

2.4V

0.4V

Waveforms 1

Waveforms 2

Figure 5. Timing Measurement Waveforms

July 1999 Sun Microsystems, Inc 15