LPC2923 datasheet(7/81 Pages) PHILIPS

Part #	LPC2923

Description	ARM9 microcontroller with CAN, LIN, and USB device

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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7 / 81 page

LPC2921_2923_2925_0

Preliminary data sheet

Rev. 00.01 — 24 October 2008

7 of 81

NXP Semiconductors

LPC2921/2923/2925

ARM9 microcontroller with CAN and LIN

P1[10]/SDI1/SDA0

40[1]

GPIO 1, pin 10

SPI1 SDI

I2C0 SDA

-

VSS(CORE)

41

ground for digital core

VDD(CORE)

42

1.8 V power supply for digital core

P1[9]/SDO1

43[1]

GPIO 1, pin 9

SPI1 SDO

-

VSS(IO)

44

ground for I/O

P1[8]/SCS1[0]/

TXDL1/CS0

45[1]

GPIO 1, pin 8

SPI1 SCS0

-

P1[7]/SCS1[3]/RXD1

46[1]

GPIO 1, pin 7

SPI1 SCS3

UART1 RXD

-

P1[6]/SCS1[2]/TXD1

47[1]

GPIO 1, pin 6

SPI1 SCS2

UART1 TXD

-

P1[5]/SCS1[1]/

PMAT3[5]

48[1]

GPIO 1, pin 5

SPI1 SCS1

PWM3 MAT5

-

P1[4]/SCS2[2]/

PMAT3[4]

49[1]

GPIO 1, pin 4

SPI2 SCS2

PWM3 MAT4

-

TRST_N

50[1]

IEEE 1149.1 test reset NOT; active LOW; pulled up internally

RST_N

51[1]

asynchronous device reset; active LOW; pulled up internally

VSS(OSC_PLL)

52

ground for oscillator

XOUT_OSC

53[3]

crystal out for oscillator

XIN_OSC

54[3]

crystal in for oscillator

VDD(OSC_PLL)

55

1.8 V supply for oscillator and PLL

VSS(OSC_PLL)

56

ground for PLL

VDD(IO)

57

3.3 V power supply for I/O

P1[3]/SCS2[1]/

PMAT3[3]

58[1]

GPIO 1, pin 3

SPI2 SCS1

PWM3 MAT3

-

P1[2]/SCS2[3]/

PMAT3[2]

59[1]

GPIO 1, pin 2

SPI2 SCS3

PWM3 MAT2

-

P1[1]/EI1/PMAT3[1]

60[1]

GPIO 1, pin 1

EXTINT1

PWM3 MAT1

-

VSS(CORE)

61

ground for digital core

VDD(CORE)

62

1.8 V power supply for digital core

P1[0]/EI0/PMAT3[0]

63[1]

GPIO 1, pin 0

EXTINT0

PWM3 MAT0

-

P0[0]/PHB0/

TXDC0/D24

64[1]

GPIO 0, pin 0

QEI0 PHB

CAN0 TXD

-

VSS(IO)

65

ground for I/O

P0[1]/PHA0/RXDC0

66[1]

GPIO 0, pin 1

QEI0 PHA

CAN0 RXD

-

P0[2]/CLK_OUT/

PMAT0[0]

67[1]

GPIO 0, pin 2

CLK_OUT

PWM0 MAT0

-

P0[3]/USB_UP_LED/

PMAT0[1]

68[1]

GPIO 0, pin 3

USB_UP_LED

PWM0 MAT1

-

P0[4]/PMAT0[2]

69[1]

GPIO 0, pin 4

-

PWM0 MAT2

-

P0[5]/PMAT0[3]

70[1]

GPIO 0, pin 5

-

PWM0 MAT3

-

VDD(IO)

71

3.3 V power supply for I/O

P0[6]/PMAT0[4]

72[1]

GPIO 0, pin 6

-

PWM0 MAT4

-

P0[7]/PMAT0[5]

73[1]

GPIO 0, pin 7

-

PWM0 MAT5

-

Table 3.

LQFP100 pin assignment …continued

Pin name

Description

Function 0 (default)

Function 1

Function 2

Function 3

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