LPC2478
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 12 September 2011
13 of 93
NXP Semiconductors
LPC2478
Single-chip 16-bit/32-bit microcontroller
P0[23]/AD0[0]/
I2SRX_CLK/
CAP3[0]
18
[2]
H1
[2]
I/O
I
I/O
P0[23] —
General purpose digital input/output pin.
AD0[0] —
A/D converter 0, input 0.
I2SRX_CLK —
Receive Clock. It is driven by the master and received by
the slave. Corresponds to the signal SCK in the
I
2
S-bus specification
.
CAP3[0] —
Capture input for Timer 3, channel 0.
P0[24] —
General purpose digital input/output pin.
AD0[1] —
A/D converter 0, input 1.
I2SRX_WS —
Receive Word Select. It is driven by the master and
received by the slave. Corresponds to the signal WS in the
I
2
S-bus
specification
.
CAP3[1] —
Capture input for Timer 3, channel 1.
P0[25] —
General purpose digital input/output pin.
AD0[2] —
A/D converter 0, input 2.
I2SRX_SDA —
Receive data. It is driven by the transmitter and read by
the receiver. Corresponds to the signal SD in the
I
2
S-bus specification
.
TXD3 —
Transmitter output for UART3.
P0[26] —
General purpose digital input/output pin.
AD0[3] —
A/D converter 0, input 3.
AOUT —
D/A converter output.
RXD3 —
Receiver input for UART3.
P0[27] —
General purpose digital input/output pin. Output is open-drain.
SDA0 —
I
2
C0 data input/output. Open-drain output (for I
2
C-bus
compliance).
P0[28] —
General purpose digital input/output pin. Output is open-drain.
SCL0 —
I
2
C0 clock input/output. Open-drain output (for I
2
C-bus
compliance).
P0[29] —
General purpose digital input/output pin.
USB_D+1 —
USB port 1 bidirectional D+ line.
P0[30] —
General purpose digital input/output pin.
USB_D
1 —
USB port 1 bidirectional D
line.
P0[31] —
General purpose digital input/output pin.
USB_D+2 —
USB port 2 bidirectional D+ line.
Port 1:
Port 1 is a 32 bit I/O port with individual direction controls for each
bit. The operation of port 1 pins depends upon the pin function selected
via the pin connect block.
P1[0] —
General purpose digital input/output pin.
ENET_TXD0 —
Ethernet transmit data 0 (RMII/MII interface).
P1[1] —
General purpose digital input/output pin.
ENET_TXD1 —
Ethernet transmit data 1 (RMII/MII interface).
P1[2] —
General purpose digital input/output pin.
ENET_TXD2 —
Ethernet transmit data 2 (MII interface).
MCICLK —
Clock output line for SD/MMC interface.
PWM0[1] —
Pulse Width Modulator 0, output 1.
I
I/O
I
I/O
P0[24]/AD0[1]/
I2SRX_WS/
CAP3[1]
16
[2]
G2
[2]
I
I/O
I
I/O
P0[25]/AD0[2]/
I2SRX_SDA/
TXD3
14
[2]
F1
[2]
O
I/O
I
O
I
I/O
I/O
P0[26]/AD0[3]/
AOUT/RXD3
12
[2][3]
E1
[2][3]
P0[27]/SDA0
50
[4]
T1
[4]
P0[28]/SCL0
48
[4]
R3
[4]
I/O
I/O
P0[29]/USB_D+1
61
[5]
U4
[5]
I/O
I/O
I/O
I/O
I/O
I/O
I/O
P0[30]/USB_D
1
62
[5]
R6
[5]
P0[31]/USB_D+2
51
[5]
T2
[5]
P1[0] to P1[31]
P1[0]/
ENET_TXD0
196
[1]
A3
[1]
I/O
O
I/O
O
I/O
O
O
O
P1[1]/
ENET_TXD1
194
[1]
B5
[1]
P1[2]/
ENET_TXD2/
MCICLK/
PWM0[1]
185
[1]
D9
[1]
Table 4.
Symbol
Pin description
…continued
Pin
Ball
Type
Description