Philips Semiconductors

 

 

 

 

User’s Manual - Preliminary -

 

 

 

 

 

 

 

 

 

INTERRUPTS

 

 

 

P89LPC901/902/903

 

Table 3-2: Summary of Interrupts - P89LPC901

 

 

 

 

 

Description

Interrupt

Vector

Interrupt

Interrupt

Arbitration

Power down

 

Flag Bit(s)

Address

Enable Bit(s)

Priority

Ranking

Wakeup

 

 

 

Timer 0 Interrupt

TF0

000Bh

ET0 (IEN0.1)

IP0H.1, IP0.1

3

No

 

 

 

 

 

 

 

 

 

Timer 1 Interrupt

TF1

001Bh

ET1 (IEN0.3)

IP0H.3, IP0.3

5

No

 

 

 

 

 

 

 

 

 

Brownout Detect

BOF

002Bh

EBO (IEN0.5)

IP0H.5, IP0.5

1

Yes

 

 

 

 

 

 

 

 

 

Watchdog Timer/Real-

WDOVF/

0053h

EWDRT

IP0H.6, IP0.6

2

Yes

 

time Clock

RTCF

(IEN0.6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KBI Interrupt

KBIF

003Bh

EKBI (IEN1.1)

IP1H.1, IP1.1

4

Yes

 

 

 

 

 

 

 

 

 

Comparator interrupt

CMF

0043h

EC (IEN1.2)

IP1H.2, IP1.2

6

Yes

 

 

 

 

 

 

 

 

 

Table 3-3: Summary of Interrupts - P89LPC902

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

Interrupt

Vector

Interrupt

Interrupt

Arbitration

Power down

 

Flag Bit(s)

Address

Enable Bit(s)

Priority

Ranking

Wakeup

 

 

 

Timer 0 Interrupt

TF0

000Bh

ET0 (IEN0.1)

IP0H.1, IP0.1

3

No

 

 

 

 

 

 

 

 

 

Timer 1 Interrupt

TF1

001Bh

ET1 (IEN0.3)

IP0H.3, IP0.3

5

No

 

 

 

 

 

 

 

 

 

Brownout Detect

BOF

002Bh

EBO (IEN0.5)

IP0H.5, IP0.5

1

Yes

 

 

 

 

 

 

 

 

 

Watchdog Timer/Real-

WDOVF/

0053h

EWDRT

IP0H.6, IP0.6

2

Yes

 

time Clock

RTCF

(IEN0.6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KBI Interrupt

KBIF

003Bh

EKBI (IEN1.1)

IP1H.1, IP1.1

4

Yes

 

 

 

 

 

 

 

 

 

Comparator interrupt

CMF

0043h

EC (IEN1.2)

IP1H.2, IP1.2

6

Yes

 

 

 

 

 

 

 

 

 

Table 3-4: Summary of Interrupts - P89LPC903

 

 

 

 

 

Description

Interrupt

Vector

Interrupt

Interrupt

Arbitration

Power down

 

Flag Bit(s)

Address

Enable Bit(s)

Priority

Ranking

Wakeup

 

 

 

Timer 0 Interrupt

TF0

000Bh

ET0 (IEN0.1)

IP0H.1, IP0.1

3

No

 

 

 

 

 

 

 

 

 

Timer 1 Interrupt

TF1

001Bh

ET1 (IEN0.3)

IP0H.3, IP0.3

5

No

 

 

 

 

 

 

 

 

 

Serial Port Tx and Rx1,3

TI & RI

0023h

ES/ESR

IP0H.4, IP0.4

8

No

 

Serial Port Rx1,3

RI

(IEN0.4)

 

 

 

 

 

 

Brownout Detect

BOF

002Bh

EBO (IEN0.5)

IP0H.5, IP0.5

1

Yes

 

 

 

 

 

 

 

 

 

Watchdog Timer/Real-

WDOVF/

0053h

EWDRT

IP0H.6, IP0.6

2

Yes

 

time Clock

RTCF

(IEN0.6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KBI Interrupt

KBIF

003Bh

EKBI (IEN1.1)

IP1H.1, IP1.1

4

Yes

 

 

 

 

 

 

 

 

 

Comparator interrupt

CMF

0043h

EC (IEN1.2)

IP1H.2, IP1.2

6

Yes

 

 

 

 

 

 

 

 

 

Serial Port Tx2

TI

006Bh

EST (IEN1.6)

P1H.6, IP1.6

7

No

 

1. SSTAT.5 = 0 selects

combined Serial Port (UART) Tx and Rx interrupt; SSTAT.5 = 1 selects Serial Port Rx interrupt only

 

(Tx interrupt will be different, see Note 3 below).

 

 

 

 

 

2. This interrupt is used as Serial Port (UART) Tx interrupt if and only if SSTAT.5 = 1, and is disabled otherwise.

 

3. If SSTAT.0 = 1, the following Serial Port additional flag bits can cause this interrupt: FE, BR, OE

 

2003 Dec 8

36

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Image 36
Philips Summary of Interrupts P89LPC901 Description, Interrupt Arbitration, Summary of Interrupts P89LPC902 Description

P89LPC903, P89LPC902, P89LPC901 specifications

The Philips P89LPC901, P89LPC902, and P89LPC903 are a series of 8-bit microcontrollers designed for embedded system applications. These models, which belong to the LPC900 series, are notable for their affordability and versatility, making them an attractive choice for both hobbyists and professional developers.

One of the core features of the P89LPC901, P89LPC902, and P89LPC903 microcontrollers is their powerful 8-bit architecture. Operating at clock speeds up to 20 MHz, they deliver efficient performance suited for a range of tasks. Each model includes a comprehensive instruction set that supports various data manipulation and arithmetic functions, enabling extensive programming capabilities.

These microcontrollers come with built-in memory, with configurations that vary among the three models. The P89LPC901 typically features 4 KB of Flash memory and 256 bytes of RAM, while the P89LPC902 and P89LPC903 offer enhanced memory options. This Flash memory allows for reprogrammability, making it easier to update and modify applications as needed.

Another significant characteristic of the LPC900 series is their integrated peripherals. These models are equipped with a variety of I/O ports, allowing for easy interfacing with other devices and components. The P89LPC901 supports up to 32 I/O pins, while the P89LPC902 and P89LPC903 provide additional features such as analog-to-digital converters (ADCs), timers, and serial communication interfaces. This broad range of peripherals empowers developers to design complex applications without needing extra hardware.

Power consumption is also a key consideration for microcontroller applications. The P89LPC901, P89LPC902, and P89LPC903 are designed with low power consumption in mind, making them ideal for battery-operated devices and energy-efficient projects. They can operate in various power modes, allowing for greater flexibility in deployment.

In terms of technology, these microcontrollers utilize advanced CMOS technology, ensuring high reliability and durability. Their design offers a robust solution for numerous applications, including consumer electronics, industrial controls, and automation systems.

In summary, the Philips P89LPC901, P89LPC902, and P89LPC903 microcontrollers present an attractive combination of performance, integrated peripherals, low power consumption, and versatility. Their features cater to a wide array of applications, keeping them relevant in a rapidly evolving technology landscape. For hobbyists and professionals alike, these microcontrollers represent a reliable foundation for embedded system development.