LPC47M182 SMSC Corporation, LPC47M182 Datasheet - Page 211

• Manufacturer Part Number: LPC47M182
• Description: ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
• Manufacturer: SMSC Corporation

Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
Note 1: Maximum value only applies if there is room in the FIFO and terminal count has not been received. ECP
Note 2: nACK is not considered asserted or deasserted until it is stable for a minimum of 75 to 130 ns.
SMSC LPC47M182
NAME
can stall by keeping nALF low.
t1
t2
t3
t4
t5
t6
PD<7:0>
nACK
nALF
PDATA Valid to nACK Asserted
nALF Deasserted to PDATA Changed
nACK Asserted to nALF Deasserted
(Notes 1,2)
nACK Deasserted to nALF Asserted (Note 2)
nALF Asserted to nACK Asserted
nALF Deasserted to nACK Deasserted
Figure 13.19 – ECP Parallel Port Reverse Timing
DESCRIPTION
t4
DATASHEET
t1
t5
211
t3
t6
Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
MIN
80
80
t4
0
0
0
0
TYP
t2
MAX
200
200
UNITS
ns
ns
ns
ns
ns
ns