SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 379

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

LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
Datasheet
SMSC SCH311X
29.7
NAME
t1
t2
DESCRIPTION
SER_IRQ Setup Time to PCI_CLK Rising
SER_IRQ Hold Time to PCI_CLK Rising
nMIRTX
PCI_CLK
MIRTX
SER_IRQ
DATA
IRTX
Serial IRQ Timing
n IRTX
0
Figure 29.23 Amplitude Shift-Keyed IR Transmit Timing
t1
Notes:
1. IRTX:
nIRTX: L5, CRF1 Bit 1 = 0
MIRTX, nMIRTX are the modulated outputs
t1
t2
t3
t4
t5
t6
t3
t5
1
L5, CRF1 Bit 1 = 1 (default)
t2
Modulated Output Bit Time
Off Bit Time
Modulated Output "On"
Modulated Output "Off"
Modulated Output "On"
Modulated Output "Off"
t4
t6
Figure 29.24 Setup and Hold Time
0
Parameter
1
DATASHEET
363
0
t1
min
0.8
0.8
0.8
0.8
0
typ
1
1
1
1
1
t2
7
0
MIN
max
1
1.2
1.2
1.2
1.2
TYP
0
units
µ s
µ s
µ s
µ s
µ s
µ s
MAX
1
Rev 0.2 (09-28-04)
1
UNITS
nsec
nsec