UM10503 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.User manual Rev. 1.3 — 6 July 2012 237 of 1269NXP Semiconductors UM10503Chapter 14: LPC43xx Pin configurationP2_3 J12 G11 127 [4] N;PUI/O SGPIO12 — General purpose digital input/output pin.I/O I2C1_SDA — I2 C1 data input/output (this pin does not use aspecialized I2C pad).O U3_TXD — Transmitter output for USART3. See Table 18 for ISPmode.I CTIN_1 — SCT input 1. Capture input 1 of timer 0. Capture input 1 oftimer 2.I/O GPIO5[3] — General purpose digital input/output pin.- R — Function reserved.O T3_MAT0 — Match output 0 of timer 3.O USB0_PPWR — VBUS drive signal (towards external charge pumpor power management unit); indicates that VBUS must be driven(active HIGH).Add a pull-down resistor to disable the power switch at reset. Thissignal has opposite polarity compared to the USB_PPWR used onother NXP LPC parts.P2_4 K11 L9 128 [4] N;PUI/O SGPIO13 — General purpose digital input/output pin.I/O I2C1_SCL — I 2C1 clock input/output (this pin does not use aspecialized I2C pad).I U3_RXD — Receiver input for USART3. See Table 18 for ISP mode.I CTIN_0 — SCT input 0. Capture input 0 of timer 0, 1, 2, 3.I/O GPIO5[4] — General purpose digital input/output pin.- R — Function reserved.O T3_MAT1 — Match output 1 of timer 3.I USB0_PWR_FAULT — Port power fault signal indicating overcurrentcondition; this signal monitors over-current on the USB bus (externalcircuitry required to detect over-current condition).P2_5 K14 J12 131 [4] N;PUI/O SGPIO14 — General purpose digital input/output pin.I CTIN_2 — SCT input 2. Capture input 2 of timer 0.I USB1_VBUS — Monitors the presence of USB1 bus power.Note: This signal must be HIGH for USB reset to occur.I ADCTRIG1 — ADC trigger input 1.I/O GPIO5[5] — General purpose digital input/output pin.- R — Function reserved.O T3_MAT2 — Match output 2 of timer 3.O USB0_IND0 — USB0 port indicator LED control output 0.Table 130. LPC4357/53 Pin description …continuedPin nameLBGA256TFBGA180LQFP208Reset state[2]TypeDescription