SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 374

• 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
Notes:
1. Maximum value only applies if there is data in the FIFO waiting to be written out.
2. BUSY is not considered asserted or deasserted until it is stable for a minimum of 75 to 130 ns.
nSTROBE
DESCRIPTION
nALF Valid to nSTROBE Asserted
PDATA Valid to nSTROBE Asserted
BUSY Deasserted to nALF Changed
(Notes 1,2)
BUSY Deasserted to PDATA Changed (Notes 1,2)
nSTROBE Asserted to Busy Asserted
nSTROBE Deasserted to Busy Deasserted
BUSY Deasserted to nSTROBE Asserted (Notes 1,2)
BUSY Asserted to nSTROBE Deasserted (Note 2)
PD<7:0>
nALF
BUSY
Figure 29.18 ECP Parallel Port Forward Timing
t6
t2
t1
t7
DATASHEET
LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
358
t5
t8
MIN
0
0
80
80
0
0
80
80
t6
t3
t4
TYP
180
200
MAX
60
60
180
180
SMSC SCH311X
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
Datasheet