Nxp semiconductors – NXP Semiconductors LPC24XX UM10237 User Manual
Page 126
UM10237_4
© NXP B.V. 2009. All rights reserved.
User manual
Rev. 04 — 26 August 2009
126 of 792
NXP Semiconductors
UM10237
Chapter 8: LPC24XX Pin configuration
P0[14]/
USB_HSTEN2/
USB_CONNECT2/
SSEL1
I/O
P0[14] — General purpose digital input/output pin.
O
USB_HSTEN2 — Host Enabled status for USB port 2.
O
USB_CONNECT2 — SoftConnect control for USB port 2. Signal used to switch
an external 1.5 k
Ω resistor under software control. Used with the SoftConnect
USB feature.
I/O
SSEL1 — Slave Select for SSP1.
P0[15]/TXD1/
SCK0/SCK
I/O
P0[15] — General purpose digital input/output pin.
O
TXD1 — Transmitter output for UART1.
I/O
SCK0 — Serial clock for SSP0.
I/O
SCK — Serial clock for SPI.
P0[16]/RXD1/
SSEL0/SSEL
I/O
P0[16] — General purpose digital input/output pin.
I
RXD1 — Receiver input for UART1.
I/O
SSEL0 — Slave Select for SSP0.
I/O
SSEL — Slave Select for SPI.
P0[17]/CTS1/
MISO0/MISO
I/O
P0[17] — General purpose digital input/output pin.
I
CTS1 — Clear to Send input for UART1.
I/O
MISO0 — Master In Slave Out for SSP0.
I/O
MISO — Master In Slave Out for SPI.
P0[18]/DCD1/
MOSI0/MOSI
I/O
P0[18] — General purpose digital input/output pin.
I
DCD1 — Data Carrier Detect input for UART1.
I/O
MOSI0 — Master Out Slave In for SSP0.
I/O
MOSI — Master Out Slave In for SPI.
P0[19]/DSR1/
MCICLK/SDA1
I/O
P0[19] — General purpose digital input/output pin.
I
DSR1 — Data Set Ready input for UART1.
O
MCICLK — Clock output line for SD/MMC interface.
I/O
SDA1 — I
2
C1 data input/output (this is not an open-drain pin).
P0[20]/DTR1/
MCICMD/SCL1
K14
I/O
P0[20] — General purpose digital input/output pin.
O
DTR1 — Data Terminal Ready output for UART1.
I/O
MCICMD — Command line for SD/MMC interface.
I/O
SCL1 — I
2
C1 clock input/output (this is not an open-drain pin).
P0[21]/RI1/
MCIPWR/RD1
K11
I/O
P0[21] — General purpose digital input/output pin.
I
RI1 — Ring Indicator input for UART1.
O
MCIPWR — Power Supply Enable for external SD/MMC power supply.
I
RD1 — CAN1 receiver input.
P0[22]/RTS1/
MCIDAT0/TD1
L14
I/O
P0[22] — General purpose digital input/output pin.
O
RTS1 — Request to Send output for UART1.
I/O
MCIDAT0 — Data line 0 for SD/MMC interface.
O
TD1 — CAN1 transmitter output.
Table 120. Pin description
…continued
Symbol
Ball
Type
Description