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參數(shù)資料
| 型號： | LPC2220 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 16/32-bit ARM microcontrollers; flashless with 64 kB, with 10-bit ADC and external memory interface |
| 中文描述： | 16/32位 ARM微控制器；64KB的閃存；10位模數(shù)轉(zhuǎn)換和外部存儲器接口 |
| 文件頁數(shù)： | 16/49頁 |
| 文件大?。?/td> | 255K |
| 代理商： | LPC2220 |
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9397 750 14061
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02— 30 May 2005
16 of 49
Philips Semiconductors
LPC2210/2220
16/32-bit ARM microcontrollers with external memory interface
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 5
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 5:
Block
WDT
-
ARM Core
ARM Core
TIMER0
TIMER1
UART0
Interrupt sources
Flag(s)
Watchdog Interrupt (WDINT)
Reserved for software interrupts only
Embedded ICE, DbgCommRX
Embedded ICE, DbgCommTX
Match 0 to 3 (MR0, MR1, MR2, MR3)
Match 0 to 3 (MR0, MR1, MR2, MR3)
RX Line Status (RLS)
Transmit Holding Register empty (THRE)
RX Data Available (RDA)
Character Time-out Indicator (CTI)
RX Line Status (RLS)
Transmit Holding Register empty (THRE)
RX Data Available (RDA)
Character Time-out Indicator (CTI)
Modem Status Interrupt (MSI)
Match 0 to 6 (MR0, MR1, MR2, MR3, MR4, MR5, MR6)
SI (state change)
SPIF, MODF
SPI1 and SSP
SPIF, MODF and TXRIS, RXRIS, RTRIS, RORRIS
PLL
PLL Lock (PLOCK)
RTC
RTCCIF (Counter Increment), RTCALF (Alarm)
System Control
External Interrupt 0 (EINT0)
External Interrupt 1 (EINT1)
External Interrupt 2 (EINT2)
External Interrupt 3 (EINT3)
A/D
A/D converter
VIC channel #
0
1
2
3
4
5
6
UART1
7
PWM0
I
2
C
SPI0
8
9
10
11
12
13
14
15
16
17
18
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