SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 370

• Manufacturer Part Number: SCH3112I-NE
• Description: LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
• Manufacturer: SMSC [SMSC Corporation]

Rev 0.2 (09-28-04)
NAME
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
Notes:
1. nWAIT is considered to have settled after it does not transition for a minimum of 50 ns.
2. When not executing a write cycle, EPP nWRITE is inactive high.
ADDRSTB
DATASTB
PD<7:0>
nWRITE
DESCRIPTION
nWAIT Asserted to nWRITE Deasserted
nWAIT Asserted to nWRITE Modified (Notes 1,2)
nWAIT Asserted to PDATA Hi-Z (Note 1)
Command Asserted to PDATA Valid
Command Deasserted to PDATA Hi-Z
nWAIT Asserted to PDATA Driven (Note 1)
PDATA Hi-Z to Command Asserted
nWRITE Deasserted to Command
nWAIT Asserted to Command Asserted
nWAIT Deasserted to Command Deasserted
(Note 1)
PDATA Valid to nWAIT Deasserted
PDATA Hi-Z to nWAIT Asserted
nWAIT
Figure 29.14 EPP 1.9 Data or Address Read Cycle
t3
t1
t9
t8
t7
DATASHEET
LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
354
t4
t11
60
60
MIN
0
60
0
0
0
1
0
60
0
0
t10
TYP
t5
t12
MAX
185
190
180
190
30
195
180
t6
t2
SMSC SCH311X
Datasheet
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs