LPC2470 Datasheet, PDF (23/83 Pages) NXP Semiconductors – Flashless 16-bit/32-bit micro; Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface

NXP Semiconductors
LPC2470
Flashless 16-bit/32-bit microcontroller
Table 4. Pin description …continued
Symbol
Pin
Ball
P4[21]/A21/
SCL2/SSEL1
115^[1] M15^[1]
P4[22]/A22/
TXD2/MISO1
123^[1] K14^[1]
P4[23]/A23/
RXD2/MOSI1
129^[1] J15^[1]
P4[24]/OE
183^[1] B8^[1]
P4[25]/WE
179^[1] B9^[1]
P4[26]/BLS0
119^[1] L15^[1]
P4[27]/BLS1
139^[1] G15^[1]
P4[28]/BLS2/
MAT2[0]/LCDVD[6]/
LCDVD[10]/
LCDVD[2]/
TXD3
170^[1]
C11^[1]
P4[29]/BLS3/
MAT2[1]
LCDVD[7]/
LCDVD[11]/
LCDVD[3]/RXD3
176^[1]
B10^[1]
P4[30]/CS0
187^[1] B7^[1]
P4[31]/CS1
193^[1] A4^[1]
ALARM
USB_D−2
DBGEN
TDO
TDI
37^[13]
N1^[13]
52
U1
9^[1]
F4^[1]
2^[1]
D3^[1]
4^[1]
C2^[1]
Type
I/O
I/O
I/O
I/O
I/O
I/O
O
I/O
I/O
I/O
I
I/O
I/O
O
I/O
O
I/O
O
I/O
O
I/O
O
O
O
O
I/O
O
O
O
I
I/O
O
I/O
O
O
I/O
I
O
I
Description
P4[21] — General purpose digital input/output pin.
A21 — External memory address line 21.
SCL2 — I²C2 clock input/output (this is not an open-drain pin).
SSEL1 — Slave Select for SSP1.
P4[22] — General purpose digital input/output pin.
A22 — External memory address line 22.
TXD2 — Transmitter output for UART2.
MISO1 — Master In Slave Out for SSP1.
P4[23] — General purpose digital input/output pin.
A23 — External memory address line 23.
RXD2 — Receiver input for UART2.
MOSI1 — Master Out Slave In for SSP1.
P4[24] — General purpose digital input/output pin.
OE — LOW active Output Enable signal.
P4[25] — General purpose digital input/output pin.
WE — LOW active Write Enable signal.
P4[26] — General purpose digital input/output pin.
BLS0 — LOW active Byte Lane select signal 0.
P4[27] — General purpose digital input/output pin.
BLS1 — LOW active Byte Lane select signal 1.
P4 [28] — General purpose digital input/output pin.
BLS2 — LOW active Byte Lane select signal 2.
MAT2[0] — Match output for Timer 2, channel 0.^[11]
LCDVD[6]/LCDVD[10]/LCDVD[2] — LCD data.^[11]
TXD3 — Transmitter output for UART3.
P4[29] — General purpose digital input/output pin.
BLS3 — LOW active Byte Lane select signal 3.
MAT2[1] — Match output for Timer 2, channel 1.^[11]
LCDVD[7]/LCDVD[11]/LCDVD[3] — LCD data.^[11]
RXD3 — Receiver input for UART3.
P4[30] — General purpose digital input/output pin.
CS0 — LOW active Chip Select 0 signal.
P4[31] — General purpose digital input/output pin.
CS1 — LOW active Chip Select 1 signal.
ALARM — RTC controlled output. This is a 1.8 V pin. It goes HIGH when
a RTC alarm is generated.
USB_D−2 — USB port 2 bidirectional D− line.
DBGEN — JTAG interface control signal. Also used for boundary
scanning.
TDO — Test Data Out for JTAG interface.
TDI — Test Data In for JTAG interface.
LPC2470_2
Preliminary data sheet
Rev. 02 — 15 October 2009
© NXP B.V. 2009. All rights reserved.
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