NSE-8G™ Standard Product Data Sheet
Preliminary
16 Microprocessor Interface Timing Characteristics
(T = -40°C to +85°C, V
= 3.3V ± 5%)
DDO
C
Table 17 Microprocessor Interface Read Access
Symbol
tS
Parameter
Address to Valid Read Set-up Time
Min
10
Max
Units
ns
AR
tH
Address to Valid Read Hold Time
Address to Latch Set-up Time
Address to Latch Hold Time
Valid Latch Pulse Width
5
ns
ns
ns
ns
AR
tS
ALR
10
10
5
tH
ALR
L
tV
tS
Latch to Read Set-up
0
5
ns
ns
ns
ns
ns
LR
tH
LR
Latch to Read Hold
tP
RD
Valid Read to Valid Data Propagation Delay
Valid Read Negated to Output Tri-state
Valid Read Negated to INTB High
30
20
50
tZ
tZ
RD
INTH
Figure 39 Microprocessor Interface Read Timing
tSar
tHar
A[11:0]
tSalr
tVl
tHalr
ALE
tSlr
tHlr
tZinth
CSB+RDB)
INTB
tPrd
tZrd
VALID
D[31:0]
Notes on Microprocessor Interface Read Timing:
1. Output propagation delay time is the time in nanoseconds from the 1.4 V point of the reference signal to
the 1.4 V point of the output.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010850, Issue 1
173
PMC [ PMC-SIERRA, INC ]
