LPC2131 Philips Semiconductors (Acquired by NXP), LPC2131 Datasheet - Page 12

• Manufacturer Part Number: LPC2131
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
9397 750 14008
Preliminary data sheet
6.6 Pin connect block
Table 4:
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.
The Pin Control Module contains three registers as shown in
Table 5:
Block
SPI0
SSP
PLL
RTC
System Control
AD0
I2C1
BOD
AD1
Address
0xE002C000
0xE002C004
0xE002C014
Interrupt sources
Pin control module registers
Flag(s)
SPIF, MODF
TX FIFO at least half empty (TXRIS)
RX FIFO at least half full (RXRIS)
Receive Timeout (RTRIS)
Receive Overrun (RORRIS)
PLL Lock (PLOCK)
RTCCIF (Counter Increment), RTCALF (Alarm)
External Interrupt 0 (EINT0)
External Interrupt 1 (EINT1)
External Interrupt 2 (EINT2)
External Interrupt 3 (EINT3)
A/D Converter 0
SI (state change)
Brown Out Detect
A/D Converter 1 (Available in LPC2138 only)
Name
PINSEL0
PINSEL1
PINSEL2
Rev. 01 — 18 November 2004
…continued
Description
Pin function select register 0
Pin function select register 1
Pin function select register 2
LPC2131/2132/2138
Single-chip 16/32-bit microcontrollers
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Table
5.
Access
Read/Write
Read/Write
Read/Write
VIC channel #
10
11
12
13
14
15
16
17
18
19
20
21
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