SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 30

• 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)
109
108
100
128
127
125
110
114
PIN
90
94
93
36
2
1
2.8,
2.8,
NOTE
2.10
2.10
2.10
2.10
2.9
2.9
2.9
Table 2.4 SCH311X Pin Core Functions Description (
GP42/
nIO_PME
GP60
/nLED1
/WDT
nFPRST /
GP30
PWRGD_
PS
PWRGD_
OUT
nRSMRS
T
GP61
/nLED2 /
CLKO
GP27
/nIO_SMI
/P17
nHWM_I
NT
+5V_IN
+2.5_IN
VCCP_IN
REMOTE
1-
+12V_IN
NAME
General Purpose I/O.
Power Management
Event Output.
active low Power
Management Event
signal allows this device
to request wake-up in
either S3 or S5 and
below.
General Purpose I/O
/nLED1
Watchdog Timer Output
Front Panel Reset /
General Purpose IO
Power Good Input from
Power Supply
Power Good Output –
Open Drain
Resume Reset Output
General Purpose I/O
/nLED2
/ Programmable Clock
Output
General Purpose I/O
/System Mgt. Interrupt
/8042 P17 I/O
Interrupt output for
Hardware monitor
Analog input for +5V
Analog input for +2.5V
Analog input for +Vccp
(processor voltage: 1.5 V
nominal).
Analog input for +12V
This is the negative
Analog input (current
sink) from the remote
thermal diode 1.
HARDWARE MONITORING BLOCK (23)
DESCRIPTION
This
DATASHEET
LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
14
GP27
/nIO_SMI
/P17
POWER
PLANE
HVTR
HVTR
HVTR
HVTR
HVTR
VCC
GP42/
nIO_PME
GP60
/nLED1
/WDT
nFPRST
/
GP30
PWRGD
_PS
PWRGD
_OUT
nRSMRS
T
GP61
/nLED2 /
CLKO
nHWM_I
NT
POWER
PLANE
Note 2.14
GP27
VTR-
) (continued)
(Note
NO GATE
NO GATE
NO GATE
NO GATE
NO GATE
NO GATE
NO GATE
OPERA-
VCC=0
TION
HI-Z
/
2.16)
SMSC SCH311X
/(O12/OD12
/(O12/OD12
/(O12/OD12
/(O12/OD12
/(O12/OD12
/(I/O12/OD1
ISPU_400 /
(I/O12/OD1
(I/O12/OD1
(I/O12/OD1
(I/O12/OD1
ISPU_400
(Note
BUFFER
MODES
I
OD8
OD8
Datasheet
AND-
O8
I
I
I
I
2)
2)
2)
2)
2)
AN
AN
AN
AN
)
)
)
)
)
2.1)