LPC47S457-NC SMSC [SMSC Corporation], LPC47S457-NC Datasheet - Page 116

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

Note 1: These pins have input buffers into the wakeup logic that are powered by VTR.
6.12.2 DESCRIPTION
Each GPIO port has a 1-bit data register and an 8-bit configuration control register. The data register for each GPIO
port is represented as a bit in one of the 8-bit GPIO DATA Registers, GP1 to GP8. The bits in these registers reflect
the value of the associated GPIO pin as follows. Pin is an input: The bit is the value of the GPIO pin. Pin is an
output: The value written to the bit goes to the GPIO pin. Latched on read and write. All of the GPIO registers are
located in either the Runtime Register block (see the Runtime Registers section) or in Logical Device A (Runtime
Registers) located in the Configuration Register block (see the Configuration section). The GPIO ports with their
alternate functions and configuration state register addresses are listed in Table 57.
SMSC LPC47S45x
PIN
102
103
107
108
109
110
111
112
113
114
116
117
118
119
120
121
122
123
GP56 /CTS2#
GP57 /DTR2# /SADR1
nXWR/GP70
nXRD/GP71
XA0/GP72
XA1/GP73
XA2/GP74
XA3/GP75
nXCS0/GP76
XCS1/GP77
XD0/GP10
XD1/GP11
XD2/GP12
XD3/GP13
XD4/GP14
XD5/GP15
XD6/GP16
XD7/GP17
NAME
VCC (Note 1)
VCC (Note 1)
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC (Note 1)
VCC (Note 1)
VCC (Note 1)
VCC (Note 1)
VCC (Note 1)
VCC (Note 1)
VCC (Note 1)
VCC (Note 1)
POWER WELL
DATASHEET
Page 116 of 259
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
REGISTER
DEFAULT
ON VTR
POR
REGISTER
DEFAULT
ON VCC
POR
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
FUNCTIONALITY
SMI/PME
PME/SMI
PME/SMI
PME/SMI
PME/SMI
PME/SMI
PME/SMI
PME/SMI
PME/SMI
PME/SMI
PME/SMI
-
-
-
-
-
-
-
-
Rev. 06-01-06