LPC2290 datasheet(16/41 Pages) NXP

16 / 41 page

LPC2290_3

Product data sheet

Rev. 03 — 16 November 2006

16 of 41

NXP Semiconductors

LPC2290

16/32-bit ARM microcontroller 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

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 VIC, 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)

VIC channel #

WDT

Watchdog Interrupt (WDINT)

Reserved for software interrupts only

ARM Core

EmbeddedICE, DbgCommRx

ARM Core

EmbeddedICE, DbgCommTx

Timer 0

Match 0 to 3 (MR0, MR1, MR2, MR3)

Capture 0 to 3 (CR0, CR1, CR2, CR3)

Timer 1

Match 0 to 3 (MR0, MR1, MR2, MR3)

Capture 0 to 3 (CR0, CR1, CR2, CR3)

UART0

RX Line Status (RLS)

Transmit Holding Register Empty (THRE)

RX Data Available (RDA)

Character Time-out Indicator (CTI)

Auto-Baud Time-Out (ABTO) (available in LPC2290/01 only)

End of Auto-Baud (ABEO)

UART1

RX Line Status (RLS)

Transmit Holding Register empty (THRE)

RX Data Available (RDA)

Character Time-out Indicator (CTI)

Modem Status Interrupt (MSI)

Auto-Baud Time-Out (ABTO) (available in LPC2290/01 only)

End of Auto-Baud (ABEO)

PWM0

Match 0 to 6 (MR0, MR1, MR2, MR3, MR4, MR5, MR6)

I2C-bus

SI (state change)

SPI0

SPIF, MODF

LPC2290 Datasheet(PDF) 16 Page - NXP Semiconductors

LPC2290 Datasheet(HTML) 16 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Datasheet Download

Link URL