UM10237_2 © NXP B.V. 2008. All rights reserved.
User manual Rev. 02 — 19 December 2008 125 o f 792
NXP Semiconductors UM10237
Chapter 8: LPC24XX Pin configuration
P0[14]/
USB_HSTEN2/
USB_CONNECT2/
SSEL1
M5[1] I/O P0[14] — General purpose digital input/output pin.
OUSB_HSTEN2Host Enabled status for USB port 2.
OUSB_CONNECT2 — SoftConnect control for USB port 2. Signal used to switch
an external 1.5 kΩ resistor under software control. Used with the SoftConnect
USB feature.
I/O SSEL1 — Slave Select for SSP1.
P0[15]/TXD1/
SCK0/SCK H13[1] I/O P0[15] — General purpose digital input/output pin.
OTXD1 — Transmitter output for UART1.
I/O SCK0 — Serial clock for SSP0.
I/O SCK — Serial clock for SPI.
P0[16]/RXD1/
SSEL0/SSEL H14[1] I/O P0[16] — General purpose digital input/output pin.
IRXD1 — Receiver input for UART1.
I/O SSEL0 — Slave Select for SSP0.
I/O SSEL — Slave Select for SPI.
P0[17]/CTS1/
MISO0/MISO J12[1] I/O P0[17] — General purpose digital input/output pin.
ICTS1 — 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 J13[1] I/O P0[18] — General purpose digital input/output pin.
IDCD1 — 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 J10[1] I/O P0[19] — General purpose digital input/output pin.
IDSR1 — Data Set Ready input for UART1.
OMCICLK — Clock output line for SD/MMC interface.
I/O SDA1 — I2C1 data input/output (this is not an open-drain pin).
P0[20]/DTR1/
MCICMD/SCL1 K14[1] I/O P0[20] — General purpose digital input/output pin.
ODTR1 — Data Terminal Ready output for UART1.
I/O MCICMD — Command line for SD/MMC interface.
I/O SCL1 — I2C1 clock input/output (this is not an open-drain pin).
P0[21]/RI1/
MCIPWR/RD1 K11[1] I/O P0[21] — General purpose digital input/output pin.
IRI1 — Ring Indicator input for UART1.
OMCIPWR — Power Supply Enable for external SD/MMC power supply.
IRD1 — CAN1 receiver input.
P0[22]/RTS1/
MCIDAT0/TD1 L14[1] I/O P0[22] — General purpose digital input/output pin.
ORTS1 — Request to Send output for UART1.
I/O MCIDAT0 — Data line 0 for SD/MMC interface.
OTD1 — CAN1 transmitter output.
Table 120. Pin de scr iption …continued
Symbol Ball Type Description