
Chapter 3 – SocketModem (MT9234SMI)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342I) 80
Parallel Timing Requirements
Timing Requirements for Parallel Write
Paramete
Min Max Unit
DS to
WR Setup (low to low) 10 - ns
A0, A1, A2 to
WR Setup (valid to low) 15 - ns
WR Pulse Width (low to high) 40 - ns
D0
D7 to
WR Setup (valid to high) 30 - ns
WR to
DS hold (high to high) 0 - ns
WR to A0
A2 Hold (high to invalid) 0 - ns
WR to D0
D7 Hold (high to invalid) 0 - ns
WR interaccess (high to low)
Non-MIMIC Accesses
MIMIC Accesses
10
110
-
-
ns
ns
Timing Requirements for Parallel Read
Paramete
Min Max Unit
DS to
RD Setup (low to low) 10 - ns
A0, A1, A2 to
RD Setup (valid to low) 15 - ns
RD Pulse Width (low to high) 40 - ns
RD to
DS hold (high to high) 0 - ns
RD to A0
A2 Hold (high to invalid) 0 - ns
WR interaccess (high to low)
Non-MIMIC Accesses
MIMIC Accesses
10
110
-
-
ns
ns
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