LPC2210 Datasheet, PDF (13/39 Pages) NXP Semiconductors – 16/32-bit ARM microcontroller with 10-bit ADC and external memory interface

Philips Semiconductors
LPC2210
16/32-bit ARM microcontrollers with external memory interface
Vectored IRQs have the middle priority. Sixteen of the interrupt requests can be
assigned to this category. Any of the interrupt requests can be assigned to any of the
16 vectored IRQ slots, among which slot 0 has the highest priority and slot 15 has the
lowest.
Non-vectored IRQs have the lowest priority.
The VIC combines the requests from all the vectored and non-vectored IRQs to
produce the IRQ signal to the ARM processor. The IRQ service routine can start by
reading a register from the VIC and jumping there. If any of the vectored IRQs are
requesting, the VIC provides the address of the highest-priority requesting IRQs
service routine, otherwise it provides the address of a default routine that is shared by
all the non-vectored IRQs. The default routine can read another VIC register to see
what IRQs are active.
6.4.1 Interrupt sources
Table 4 lists the interrupt sources for each peripheral function. Each peripheral device
has one interrupt line connected to the Vectored Interrupt Controller, but may have
several internal interrupt flags. Individual interrupt flags may also represent more than
one interrupt source.
Table 4: Interrupt sources
Block
Flag(s)
WDT
Watchdog Interrupt (WDINT)
-
Reserved for software interrupts only
ARM Core
Embedded ICE, DbgCommRx
ARM Core
Embedded ICE, DbgCommTx
Timer0
Match 0 - 3 (MR0, MR1, MR2, MR3)
Timer1
Match 0 - 3 (MR0, MR1, MR2, MR3)
UART0
Rx Line Status (RLS)
Transmit Holding Register empty (THRE)
Rx Data Available (RDA)
Character Time-out Indicator (CTI)
UART1
Rx Line Status (RLS)
Transmit Holding Register empty (THRE)
Rx Data Available (RDA)
Character Time-out Indicator (CTI)
Modem Status Interrupt (MSI)
PWM0
Match 0 - 6 (MR0, MR1, MR2, MR3, MR4, MR5, MR6)
I²C
SI (state change)
SPI0
SPIF, MODF
SPI1
SPIF, MODF
PLL
PLL Lock (PLOCK)
RTC
RTCCIF (Counter Increment), RTCALF (Alarm)
VIC channel #
0
1
2
3
4
5
6
7
8
9
10
11
12
13
9397 750 12872
Preliminary data
Rev. 01 — 09 February 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
13 of 39