Motorola MC6805R Series User Manual

Paragraph
Number
TABLE OF CONTENTS
( Continued)
Title
Section 5
Timer
Page
Number
5.1 MC6805R2/MC6805U2 Timer Circuitry ............................... , 5-1
5.2 MC6805R3/MC6805U3 Timer Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-2
5.2.1 Timer Input Mode 1 ............................................ , 5-3
5.2.2 Timer Input Mode 2 ............................................ , 5-3
5.2.3 Timer Input Mode 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-3
5.2.4 Timer Input Mode 4 ............................................ , 5-3
5.2.5 Timer Control Register (TCR) .................................... 5-4
5.3 MC68705R3/MC68705U3 and MC68705R5/MC68705U5 Timer Circuitry
... , 5-5
5.3.1 Software Controlled Mode ...................................... , 5-8
5.3.2 MOR Controlled Mode ......................................... , 5-9
5.3.3 Timer
Control Register nCR) .................................... 5-9
Section 6
Self-Check
q.1 RAM Self-Check Subroutine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-1
6.2 ROM Checksum Subroutine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-1
6.3 Analog-to-Digital Converter Self-Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-1
6.4 Timer Self-Check Subroutine ....................................... , 6-3
Section 7
Reset,
Clock, and Interrupt Structure
7. 1 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-1
7.1.1 Power-OnReset(POR) .......................................... 7-1
7.1.2 External Reset Input ........................................... , 7-2
7.1.3 Low-Voltage Inhibit (LVI) ........................................ 7-2
7.2
Internal Clock Generator Options .................................... , 7-2
7.3
Interrupts ......................................................... 7-5
Section 8
Input/Output Circuitry and Analog-to-Digital Converter
8.1 I nput/ Output Circuitry ............................................. , 8-1
8.2 Analog-to-Digital Converter ......................................... , 8-3
Section 9
Mask
Options and Programming
9.1 Mask Options ..................................................... , 9-1
9.2 On-Chip Programming Hardware .................................... , 9-2
9.3 Erasing the
EPROM ................................................ , 9-4
9.4 Programming Firmware
............................................ , 9-4
9.5 Programming
Steps ................................................ 9-4
9.6
Emulation ........................................................ , 9-6
iv

Motorola MC6805R Series Specifications

General

Brand	Motorola
Model	MC6805R Series
Category	Computer Hardware
Language	English