SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 28

• 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)
PIN
71
74
75
76
77
78
79
80
45
46
47
48
49
50
51
52
53
54
NOTE
2.11,
2.12
2.12
2.12
2.12
2.12
2.12
2.12
2.12
2.12
2.12
2.9
2.9
2.9
2.9
2.9
2.9
2.9
2.9
Table 2.4 SCH311X Pin Core Functions Description (
GP50 /
nRI2
GP51 /
nDCD2
GP52 /
RXD2
(IRRX)
GP53 /
TXD2
(IRTX)
GP54 /
nDSR2
GP55 /
nRTS2 /
RESGEN
GP56 /
nCTS2
GP57 /
nDTR2
nINIT /
nDIR
nSLCTIN
/
nSTEP
PD0 /
nINDEX
PD1 /
nTRK0
PD2 /
nWRTPR
T
PD3 /
nRDATA
PD4 /
nDSKCH
G
PD5
PD6 /
nMTR0
PD7
NAME
SHARED PARALLEL PORT / FDC INTRERFACE (17)
Ring Indicator 2
Data Carrier Detect 2
Receive Data 2 (IRRX)
Transmit Data 2 (IRTX)
Data Set Ready 2
Request to Send 2 /
Reset Generator Pulse
Width Strap Option
Clear to Send 2
Data Terminal Ready 2
Initiate Output
Printer Select Input
Port Data 0
Port Data 1
Port Data 2
Port Data 3
Port Data 4
Port Data 5
Port Data 6
Port Data 7
DESCRIPTION
DATASHEET
LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
12
GP51 /
GP52 /
GP53 /
GP54 /
GP56 /
GP57 /
nINIT /
nSLCTIN /
PD0 /
PD1 /
PD2 /
PD3 /
PD4 /
PD6 /
GP50
nDCD2
RXD2
(IRRX)
TXD2
(IRTX)
nDSR2
GP55 /
nRTS2 /
RESGEN
nCTS2
nDTR2
nDIR
nSTEP
nINDEX
nTRK0
nWRTPR
T
nRDATA
nDSKCH
G
PD5
nMTR0
PD7
POWER
PLANE
VCC
nRI2
POWER
PLANE
Note 2.14
VTR-
) (continued)
(Note
NO GATE/
NO GATE/
NO GATE/
NO GATE/
NO GATE/
NO GATE/
NO GATE/
NO GATE/
OPERA-
GATE /
GATE /
GATE /
GATE /
GATE /
GATE /
GATE /
GATE /
GATE /
GATE /
VCC=0
TION
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
HI-Z
2.16)
SMSC SCH311X
I/
IOD8
I
IS
O12
I
OP14 /
I
I
O6
(OD14/OP1
(OD14/OP1
(Note
BUFFER
MODES
IOP14
IOP14
IOP14
IOP14
IOP14
IOP14
IOP14
IOP14
Datasheet
4)
4)
2.1)