HC705MC4GRSSLASHD datasheet(11/180 Pages) NXP

11 / 180 page

General Release Specification

List of Figures

General Release Specification — MC68HC705MC4

List of Figures

Figure

Title

Page

1-1

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

1-2

28-Pin DIP Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

1-3

28-Pin SOIC Assignments . . . . . . . . . . . . . . . . . . . . . . . . . .22

1-4

Oscillator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

2-1

User Mode Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . .28

2-2

I/O and Control Registers Memory Map . . . . . . . . . . . . . . . .29

2-3

I/O and Control Registers $0000–$000F . . . . . . . . . . . . . . .31

2-4

I/O and Control Registers $0010–$0001F . . . . . . . . . . . . . .32

2-5

I/O and Control Registers $0020–$002F . . . . . . . . . . . . . . .33

4-1

Interrupt Processing Flowchart. . . . . . . . . . . . . . . . . . . . . . .41

4-2

IRQ Status and Control Register (ISCR) . . . . . . . . . . . . . . .44

4-3

Interrupt Hardware Structure . . . . . . . . . . . . . . . . . . . . . . . .45

5-1

Reset Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

5-2

COP Watchdog Timer Register . . . . . . . . . . . . . . . . . . . . . .52

6-1

Programmer Interface to Host . . . . . . . . . . . . . . . . . . . . . . .56

6-2

Bootloader Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

6-3

Programming Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

6-4

EPROM Programming Register (EPGM) . . . . . . . . . . . . . . .59

6-5

Mask Option Register (MOR) . . . . . . . . . . . . . . . . . . . . . . . .60

6-6

Wait Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

7-1

Port A I/O Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

7-2

Line Interface Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

7-3

Port B I/O Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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