MC68HC705F8 datasheet(10/126 Pages) MOTOROLA

Part #	MC68HC705F8

Description	High-density complementary metal oxide semiconductor(HCMOS) microcontroller unit

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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MC68HC05F8

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5

INTERRUPTS

5.1

Hardware Controlled Sequences...........................................................................5-4

5.2

Software Interrupt (SWI)........................................................................................5-4

5.3

External Interrupts (IRQ1 & IRQ2) ........................................................................5-4

5.3.1

External Interrupt Triggering Options (INTN1 & INTN2) ..................................5-6

5.3.2

External Interrupt Enable (INTE1 & INTE2).....................................................5-6

5.3.3

External Interrupt Flags (INTF1 & INTF2) .......................................................5-7

5.4

Keyboard Interrupt .................................................................................................5-7

5.4.1

Keyboard Control Register...............................................................................5-8

5.5

Programmable Timer (Timer A) Interrupt...............................................................5-8

5.6

Reloadable Timer (Timer B) Interrupt ....................................................................5-10

5.7

SPI Interrupt ..........................................................................................................5-10

5.8

Manchester Coder (MANCD) Interrupt ..................................................................5-11

6

TIMERS

6.1

TIMER A - PROGRAMMABLE TIMER ..................................................................6-1

6.1.1

Counter ............................................................................................................6-1

6.1.2

Output Compare Registers ..............................................................................6-4

6.1.3

Input Capture Registers...................................................................................6-4

6.1.4

Timer Control Register (TCR) ..........................................................................6-5

6.1.5

Timer A Status Register (TSR) ........................................................................6-6

6.1.6

Programmable Timer Timing Diagrams ...........................................................6-7

6.2

TIMER B - RELOADABLE TIMER .........................................................................6-10

6.2.1

Functional Description .....................................................................................6-10

6.2.2

Resolution and Maximum Period .....................................................................6-10

6.2.3

Timer B Counter ..............................................................................................6-11

6.2.4

Timer B Preset Register ..................................................................................6-12

6.2.5

Timer B Control Status Register ......................................................................6-12

6.3

COP WATCHDOG .................................................................................................6-13

6.3.1

Watchdog Timer Time-Out Flag .......................................................................6-13

6.3.2

COP System Enable and Operation ................................................................6-14

6.3.3

Disable COP Function in Stop or Wait Mode ...................................................6-14

6.3.4

Watchdog Timer Control Status Register (WDCSR)........................................6-14

7

SERIAL PERIPHERAL INTERFACE

7.1

Features ................................................................................................................7-1

7.2

Signal Description .................................................................................................7-1

7.2.1

Serial Clock (SCK) ...........................................................................................7-2

TPG

8

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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MC68HC705F8 Datasheet(PDF) 10 Page - Motorola, Inc

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