LPC47S457-NC SMSC [SMSC Corporation], LPC47S457-NC Datasheet - Page 117

• Manufacturer Part Number: LPC47S457-NC
• Description: Advanced I/O with X-Bus Interface
• Manufacturer: SMSC [SMSC Corporation]

SMSC LPC47S45x
PIN NO.
/QFP
116
117
118
119
120
121
122
123
N/A
N/A
N/A
N/A
44
45
46
47
48
49
50
53
54
55
57
58
64
65
66
67
20
31
95
6
7
X-Bus Data
X-Bus Data
X-Bus Data
X-Bus Data
X-Bus Data
X-Bus Data
X-Bus Data
X-Bus Data
FUNCTION
Reserved
Reserved
Reserved
Reserved
DEFAULT
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
0
1
2
3
4
5
6
7
Fan Tachometer
Keyboard Reset
Ring Indicator 2
Device Disable
Drive Density
Drive Density
Management
Reg. Control
FUNCTION 1
IRQ Input D
Fan Control
IRQ Input A
IRQ Input B
X-Bus Chip
X-Bus Chip
Gate A20
Table 57 − General Purpose I/O Port Assignments
IO_SMI#
Select 2
Select 3
Select 0
Select 1
Power
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
Event
ALT.
P17
P16
P12
P17
P12
DATASHEET
FUNCTION 2
Drive Select
Motor On 1
Page 117 of 259
EETI
EETI
EETI
ALT.
1
FUNCTION 3
EETI
ALT.
REGISTER
DATA
GP1
GP2
GP3
GP4
GP5
1
DATA REG
BIT NO.
0
1
2
3
4
5
6
1
4
5
2
3
4
5
6
0
7
0
2
3
6
7
0
1
4
5
6
7
0
1
2
3
7
Rev. 06-01-06
OFFSET
(HEX)
REG
4C
4D
4B
4E
4F