LPC18S50 datasheet(10/151 Pages) NXP

10 / 151 page

LPC18S50_S30_S10

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Product data sheet

Rev. 1 — 23 February 2015

10 of 151

NXP Semiconductors

LPC18S50/S30/S10

32-bit ARM Cortex-M3 microcontroller

P1_5

[2]

N; PU I/O

GPIO1[8] — General purpose digital input/output pin.

CTOUT_10 — SCTimer/PWM output 10. Match output 3 of

timer 3.

R — Function reserved.

EMC_CS0 — LOW active Chip Select 0 signal.

USB0_PWR_FAULT — Port power fault signal indicating

overcurrent condition; this signal monitors over-current on the

USB bus (external circuitry required to detect over-current

condition).

I/O

SSP1_SSEL — Slave Select for SSP1.

R — Function reserved.

SD_POW — SD/MMC card power monitor output.

P1_6

[2]

N; PU I/O

GPIO1[9] — General purpose digital input/output pin.

CTIN_5 — SCTimer/PWM input 5. Capture input 2 of timer 2.

R — Function reserved.

EMC_WE — LOW active Write Enable signal.

R — Function reserved.

I/O

SD_CMD — SD/MMC command signal.

P1_7

[2]

N; PU I/O

GPIO1[0] — General purpose digital input/output pin.

U1_DSR — Data Set Ready input for UART1.

CTOUT_13 — SCTimer/PWM output 13. Match output 3 of

timer 3.

I/O

EMC_D0 — External memory data line 0.

USB0_PPWR — VBUS drive signal (towards external charge

pump or power management unit); indicates that VBUS must

be driven (active HIGH).

Add a pull-down resistor to disable the power switch at reset.

This signal has opposite polarity compared to the USB_PPWR

used on other NXP LPC parts.

R — Function reserved.

Table 3.

Pin description …continued

LCD, Ethernet, USB0, and USB1 functions are not available on all parts. See Table 2.

Symbol

Description

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