LPC2925 NXP Semiconductors, LPC2925 Datasheet - Page 5

• Manufacturer Part Number: LPC2925
• Description: (LPC2921 - LPC2925) ARM9 microcontroller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
5. Pinning information
Table 3.
LPC2921_2923_2925_0
Preliminary data sheet
Pin name
TDO
P0[24]/TXD1/
TXDC1/SCS2[0]
P0[25]/RXD1/
RXDC1/SDO2
P0[26]/TXD1/SDI2
P0[27]/RXD1/SCK2
P0[28]/CAP0[0]/
MAT0[0]
P0[29]/CAP0[1]/
MAT0[1]
V
P0[30]/CAP0[2]/
MAT0[2]
P0[31]/CAP0[3]/
MAT0[3]
V
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DD(IO)
SS(IO)
LQFP100 pin assignment
5.2.1 General description
5.2.2 LQFP100 pin assignment
5.1 Pinning
5.2 Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
The LPC2921/2923/2925 uses three ports: port 1 with 32 pins, port 1 with 28 pins, and
port 5 with 2 pins. Ports 4/3/2 are not used. The pin to which each function is assigned is
controlled by the SFSP registers in the SCU. The functions combined on each port pin are
shown in the pin description tables in this section.
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
Fig 2.
Description
Function 0 (default)
IEEE 1149.1 test data out
GPIO 0, pin 24
GPIO 0, pin 25
GPIO 0, pin 26
GPIO 0, pin 27
GPIO 0, pin 28
GPIO 0, pin 29
3.3 V power supply for I/O
GPIO 0, pin 30
GPIO 0, pin 31
ground for I/O
Pin configuration for SOT407-1 (LQFP100)
Rev. 00.01 — 24 October 2008
25
1
Function 1
UART1 TXD
UART1 RXD
LPC2921FBD100
LPC2923FBD100
LPC2925FBD100
-
-
-
-
-
-
ARM9 microcontroller with CAN and LIN
LPC2921/2923/2925
Function 2
CAN1 TXD
CAN1 RXD
UART1 TXD
UART1 RXD
TIMER0 CAP0
TIMER0 CAP1
TIMER0 CAP2
TIMER0 CAP3
002aae242
75
51
© NXP B.V. 2008. All rights reserved.
Function 3
SPI2 SCS0
SPI2 SDO
SPI2 SDI
SPI2 SCK
TIMER0 MAT0
TIMER0 MAT1
TIMER0 MAT2
TIMER0 MAT3
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