Nxp Semiconductors UM10237 用户手册

UM10237_2

© NXP B.V. 2008. All rights reserved.

 

The LPC2400 parts have different pin configurations depending on the number of pins. 
See 

 for the PINSEL registers needed to configure the different LPC2400 

parts:

Only LPC2470 and LPC2478 have an LCD controller.

LPC2420/60 and LPC2470 are flashless and requite boot pins (see 

LPC2458 has an 16-bit external memory controller, LPC2460/68/70/78 have 32-bit 
external memory controller.

All parts can have ETM functions enabled or disabled.

Ethernet and CAN interface are not available on LPC2420.

 

The pin connect block allows selected pins of the microcontroller to have more than one 
function. Configuration registers control the multiplexers to allow connection between the 
pin and the on chip peripherals.

Peripherals should be connected to the appropriate pins prior to being activated, and prior 
to any related interrupt(s) being enabled. Activity of any enabled peripheral function that is 
not mapped to a related pin should be considered undefined.

Selecting a single function on a port pin completely excludes all other functions otherwise 
available on the same pin.

PINSEL0

-

CAN

-

-

PINSEL1

-

-

-

PINSEL2

 LCD

Ethernet, 
LCD

 LCD

-

PINSEL3

LCD

LCD

LCD

-

PINSEL4

LCD

CAN, LCD

LCD

-

PINSEL5

-

-

-

-

PINSEL6

-

-

-

-

PINSEL7

-

-

-

-

PINSEL8

-

-

-

-

-

PINSEL9

LCD

LCD

LCD

-

PINSEL10

-

-

-

-

PINSEL11 -

-

-

-

-

-

-