SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 29

• 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
PIN
56
57
58
59
60
61
62
37
38
39
40
41
42
NOTE
2.12
2.12
2.12
2.12
2.12
2.12
2.12
2.9
2.9
2.9
2.9
2.6
2.6
Table 2.4 SCH311X Pin Core Functions Description (
SLCT /
nWGATE
PE /
nWDATA
BUSY /
nMTR1
nACK /
nDS1
nERROR
/
nHDSEL
nALF /
DRVDEN
0
nSTROB
E /
nDS0
KDAT/GP
21
KCLK/GP
22
MDAT/GP
32
MCLK/GP
33
GP36/
nKBDRS
T
GP37/
A20M
NAME
Printer Selected Status
Paper End
Busy
Acknowledge
Error
Autofeed Output
Strobe Output
Keyboard Data I/O
General Purpose I/O
Keyboard Clock I/O
General Purpose I/O
Mouse Data I/O
/General Purpose I/O
Mouse Clock I/O
/General Purpose I/O
General Purpose I/O.
GPIO can be configured
as an Open-Drain
Output.
Keyboard Reset Open-
Drain Output (Note 10)
General Purpose I/O.
GPIO can be configured
as an Open-Drain
Output.
Gate A20 Open-Drain
Output (Note 10)
KEYBOARD/MOUSE INTERFACE (6)
DESCRIPTION
MISCELLANEOUS PINS (5)
DATASHEET
13
SLCT /
BUSY /
nACK /
nALF /
nSTROBE
nWGATE
PE /
nWDATA
nMTR1
nDS1
nERROR /
nHDSEL
DRVDEN0
/
nDS0
KDAT/GP
21
KCLK/GP
22
MDAT/GP
32
MCLK/GP
33
GP36/
nKBDRST
GP37/
A20M
POWER
PLANE
VCC
POWER
PLANE
Note 2.14
VTR-
) (continued)
NO GATE /
NO GATE /
NO GATE /
NO GATE /
NO GATE /
NO GATE /
(Note
OPERA-
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
2.16)
Rev 0.2 (09-28-04)
/(I/O16/OD1
(OD14/OP1
(OD14/OP1
(I/O16/OD1
(I/O16/OD1
(I/O16/OD1
(I/O8/OD8)
(I/O8/OD8)
(I/OD16)/
/(I/OD16)
(Note
I/OD16)/
(I/OD16)
BUFFER
MODES
/OD8
/OD8
4)
4)
6)
6)
6)
6)
I
I
I
I
I
2.1)