LPC2921 Datasheet, PDF (7/81 Pages) NXP Semiconductors – ARM9 microcontroller with CAN, LIN, and USB device

NXP Semiconductors
Table 3. LQFP100 pin assignment …continued
Pin name
Pin
Description
Function 0 (default) Function 1
P1[10]/SDI1/SDA0 40^[1]
GPIO 1, pin 10
SPI1 SDI
V_SS(CORE)
V_DD(CORE)
P1[9]/SDO1
41
ground for digital core
42
1.8 V power supply for digital core
43^[1]
GPIO 1, pin 9
SPI1 SDO
LPC2921/2923/2925 _{ARMIF2u9Cn0mctSiicoDrn}^D_{AoR2cAoFTnDtrRoADlFRleTArDFTRwAD-FiFRtuThDAnDFRCcTRAtAAFDio}^TFRNT_{nADDFRa3TRDAnARFDdTFARTFADLTDFRITNRDAARDFTFDARTRFADTADFRTFRDATADRF}
-
-
V_SS(IO)
44
ground for I/O
P1[8]/SCS1[0]/
45^[1]
GPIO 1, pin 8
SPI1 SCS0
-
-
TXDL1/CS0
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]/
48^[1]
GPIO 1, pin 5
SPI1 SCS1
PWM3 MAT5
-
PMAT3[5]
P1[4]/SCS2[2]/
49^[1]
GPIO 1, pin 4
SPI2 SCS2
PWM3 MAT4
-
PMAT3[4]
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
V_{SS(OSC_PLL)}
XOUT_OSC
52
53^[3]
ground for oscillator
crystal out for oscillator
XIN_OSC
54^[3]
crystal in for oscillator
V_{DD(OSC_PLL)}
55
1.8 V supply for oscillator and PLL
V_{SS(OSC_PLL)}
56
ground for PLL
V_DD(IO)
57
3.3 V power supply for I/O
P1[3]/SCS2[1]/
58^[1]
GPIO 1, pin 3
SPI2 SCS1
PWM3 MAT3
-
PMAT3[3]
P1[2]/SCS2[3]/
59^[1]
GPIO 1, pin 2
SPI2 SCS3
PWM3 MAT2
-
PMAT3[2]
P1[1]/EI1/PMAT3[1] 60^[1]
GPIO 1, pin 1
EXTINT1
PWM3 MAT1
-
V_SS(CORE)
61
ground for digital core
V_DD(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/
64^[1]
GPIO 0, pin 0
QEI0 PHB
CAN0 TXD
-
TXDC0/D24
V_SS(IO)
65
ground for I/O
P0[1]/PHA0/RXDC0 66^[1]
GPIO 0, pin 1
QEI0 PHA
CAN0 RXD
-
P0[2]/CLK_OUT/
67^[1]
GPIO 0, pin 2
CLK_OUT
PWM0 MAT0
-
PMAT0[0]
P0[3]/USB_UP_LED/ 68^[1]
GPIO 0, pin 3
USB_UP_LED
PWM0 MAT1
-
PMAT0[1]
P0[4]/PMAT0[2]
69^[1]
GPIO 0, pin 4
-
PWM0 MAT2
-
P0[5]/PMAT0[3]
70^[1]
GPIO 0, pin 5
-
PWM0 MAT3
-
V_DD(IO)
P0[6]/PMAT0[4]
71
72^[1]
3.3 V power supply for I/O
GPIO 0, pin 6
-
PWM0 MAT4
-
P0[7]/PMAT0[5]
73^[1]
GPIO 0, pin 7
-
PWM0 MAT5
-
LPC2921_2923_2925_0
Preliminary data sheet
Rev. 00.01 — 24 October 2008
© NXP B.V. 2008. All rights reserved.
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