UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
291 of 1269
NXP Semiconductors
UM10503
Chapter 15: LPC43xx System Control Unit (SCU)/ IO configuration
15.4.1 Pin configuration registers for normal-drive pins
Each digital pin and each clock pin on the LPC43xx have an associated pin configuration
register which determines the pin’s function and electrical characteristics.
The pin configuration registers for normal-drive pins control the following pins:
•
P0_0 and P0_1
•
P1_0 to P1_16 and P1_18 to P1_20
•
P2_0 to P2_2 and P2_6 to P2_13
•
P3_0 to P3_2 and P3_4 to P3_8
•
P4_0 to P4_10
•
P5_0 to P5_7
•
P6_0 to P6_12
•
P7_0 to P7_7
•
P8_3 to P8_8
•
P9_0 to P9_6
•
PA_0 and PA_4
•
PB_0 to PB_6
•
PC_0 to PC_14
•
PE_0 to PE_15
•
PF_0 to PF_11
USB1 USB1_DP/USB1_DM pins and I
2
C-bus open-drain pins
SFSUSB
R/W
0xC80
Pin configuration register for pins
USB1_DM and USB1_DP
0x02
0x00
0x00
SFSI2C0
R/W
0xC84
Pin configuration register for I
2
C0-bus
pins
0x00
0x00
0x00
ADC pin select registers
ENAIO0
R/W
0xC88
ADC0 function select register
0x00
0x00
0x00
ENAIO1
R/W
0xC8C
ADC1 function select register
0x00
0x00
0x00
ENAIO2
R/W
0xC90
Analog function select register
0x00
0x00
0x00
EMC delay register
EMCDELAYCLK
R/W
0xD00
EMC clock delay register
0x00
0x00
0x00
Pin interrupt select registers
PINTSEL0
R/W
0xE00
Pin interrupt select register for pin
interrupts 0 to 3.
0x00
0x00
0x00
PINTSEL1
R/W
0xE04
Pin interrupt select register for pin
interrupts 4 to 7.
0x00
0x00
0x00
Table 132. Register overview: System Control Unit (SCU) (base address 0x4008 6000)
…continued
Name
Access Address
offset
Description
Reset
value
Reset
value
after
EMC
boot
Reset
value
after
UART
boot
Reference