PMC-Sierra, Inc.

S/UNI-QUAD

DATASHEET

PM5349 S/UNI-QUAD

PMC-971239

ISSUE 6

SATURN USER NETWORK INTERFACE (155-QUAD)

 

 

 

4.In non-multiplexed address/data bus architectures, ALE should be held high so parameters tSALR, tHALR, tVL, tSLR, and tHLR are not applicable.

5.Parameter tHAR is not applicable if address latching is used.

6.When a set-up time is specified between an input and a clock, the set-up time is the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt point of the clock.

7.When a hold time is specified between an input and a clock, the hold time is the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt point of the clock.

Table 16: Microprocessor Interface Write Access (Figure 25)

Symbol

Parameter

Min

Max

Units

 

 

 

 

 

tSAW

Address to Valid Write Set-up Time

10

 

ns

tSDW

Data to Valid Write Set-up Time

20

 

ns

tSALW

Address to Latch Set-up Time

10

 

ns

tHALW

Address to Latch Hold Time

10

 

ns

tVL

Valid Latch Pulse Width

5

 

ns

tSLW

Latch to Write Set-up

0

 

ns

tHLW

Latch to Write Hold

5

 

ns

tHDW

Data to Valid Write Hold Time

5

 

ns

tHAW

Address to Valid Write Hold Time

5

 

ns

tVWR

Valid Write Pulse Width

40

 

ns

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PMC-Sierra PM5349 manual Tsalw