LPC1850 datasheet(29/157 Pages) PHILIPS

29 / 157 page

LPC1850_30_20_10

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Preliminary data sheet

Rev. 3 — 6 December 2011

29 of 157

NXP Semiconductors

LPC1850/30/20/10

32-bit ARM Cortex-M3 microcontroller

P6_3

P15

113

[3]

I; PU I/O

GPIO3[2] — General purpose digital input/output pin.

USB0_PPWR — VBUS drive signal (towards

external charge pump or power management unit);

indicates that the VBUS signal 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.

EMC_CS1 — LOW active Chip Select 1 signal.

R — Function reserved.

T2_CAP2 — Capture input 2 of timer 2.

R — Function reserved.

P6_4

R16

114

[3]

I; PU I/O

GPIO3[3] — General purpose digital input/output pin.

CTIN_6 — SCT input 6. Capture input 1 of timer 3.

U0_TXD — Transmitter output for USART0.

EMC_CAS — LOW active SDRAM Column Address

Strobe.

R — Function reserved.

P6_5

P16

117

[3]

I; PU I/O

GPIO3[4] — General purpose digital input/output pin.

CTOUT_6 — SCT output 6. Match output 2 of timer

U0_RXD — Receiver input for USART0.

EMC_RAS — LOW active SDRAM Row Address

Strobe.

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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