LPC2478 NXP Semiconductors, LPC2478 Datasheet - Page 25

• Manufacturer Part Number: LPC2478
• Description: NXP Semiconductors designed the LPC2478 microcontroller, powered by theARM7TDMI-S core, to be a highly integrated microcontroller for a wide range ofapplications that require advanced communications and high quality graphic displays
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 4.
LPC2478
Product data sheet
Symbol
P4[23]/A23/
RXD2/MOSI1
P4[24]/OE
P4[25]/WE
P4[26]/BLS0
P4[27]/BLS1
P4[28]/BLS2/
MAT2[0]/LCDVD[6]/
LCDVD[10]/
LCDVD[2]/
TXD3
P4[29]/BLS3/
MAT2[1]
LCDVD[7]/
LCDVD[11]/
LCDVD[3]/RXD3
P4[30]/CS0
P4[31]/CS1
ALARM
USB_D2
DBGEN
TDO
TDI
TMS
TRST
TCK
RTCK
RSTOUT
Pin description
Pin
129
183
179
119
139
170
176
187
193
37
52
9
2
4
6
8
10
206
29
[1][22]
[1][23]
[1][22]
[1][22]
[1][22]
[8]
[1][23]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1][22]
…continued
Ball
J15
B8
B9
L15
G15
C11
B10
B7
A4
N1
U1
F4
D3
C2
E3
D1
E2
C3
K3
[1][22]
[1]
[1]
[1]
[1]
[1][22]
[1][23]
[8]
[1][23]
[1][22]
[1][22]
[1][22]
[1]
[1]
[1]
[1]
[1]
All information provided in this document is subject to legal disclaimers.
Type
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
I
I
I
I/O
O
Rev. 3 — 12 September 2011
Description
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.
LCDVD[6]/LCDVD[10]/LCDVD[2] — LCD data.
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.
LCDVD[7]/LCDVD[11]/LCDVD[3] — LCD data.
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.
TMS — Test Mode Select for JTAG interface.
TRST — Test Reset for JTAG interface.
TCK — Test Clock for JTAG interface. This clock must be slower than
of the CPU clock (CCLK) for the JTAG interface to operate.
RTCK — JTAG interface control signal.
Note: LOW on this pin while RESET is LOW enables ETM pins (P2[9:0])
to operate as Trace port after reset.
RSTOUT — This is a 3.3 V pin. LOW on this pin indicates LPC2478
being in Reset state.
Single-chip 16-bit/32-bit microcontroller
[21]
[21]
[21]
[21]
LPC2478
© NXP B.V. 2011. All rights reserved.
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