PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
18
MICROPROCESSOR INTERFACE TIMING CHARACTERISTICS
TA= -40° to +85°C, VDD=5V ±10%
Table 6
Symbol
- Microprocessor Read Access (Figure 38)
Parameter
Min
Max
Units
ns
tS
Address to Valid Read Set-up Time 10
AR
tH
Address to Valid Read Hold Time
Address to Latch Set-up Time
Address to Latch Hold Time
Valid Latch Pulse Width
Latch to Read Set-up
5
ns
AR
tS
10
10
20
0
ns
ALR
tH
ns
ALR
L
tV
tS
ns
ns
LR
tH
Latch to Read Hold
5
ns
LR
tP
Valid Read to Valid Data
80
20
50
ns
RD
Propagation Delay
tZ
Valid Read Negated to Output Tri-
state
Valid Read Negated to INTB high
ns
ns
RD
tZ
INTH
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
255
PMC [ PMC-SIERRA, INC ]
