S/UNI®-JET Data Sheet
Released
17 Microprocessor Interface Timing Characteristics
(T = -40°C to +85°C, V
= 3.3 V ±10%)
A
DD
Table 48 Microprocessor Interface Read Access (Figure 75)
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
5
ns
ns
ns
ns
ns
ns
ns
ns
ns
AR
tS
ALR
10
10
5
tH
ALR
L
tV
tS
Valid Latch Pulse Width
Latch to Read Set-up
0
LR
tH
LR
Latch to Read Hold
5
tP
RD
Valid Read to Valid Data Propagation Delay
Valid Read Negated to Output Tri-state
Valid Read Negated to Output Tri-state
70
20
50
tZ
tZ
RD
INTH
Figure 75 Microprocessor Interface Read Timing
A[10:0]
Valid Address
tS
tH
ALR
ALR
tV
L
tS
tH
LR
LR
ALE
tS
tH
AR
AR
(CSB+RDB)
tZ
tZ
INTH
RD
tP
RD
D[7:0]
Valid Data
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990267, Issue 3
322
PMC [ PMC-SIERRA, INC ]
