11/3/95
SECTION 1: OVERVIEW
UM Rev.1.0
xiv
MC68349 USER’S MANUAL
MOTOROLA
TABLE OF CONTENTS (Continued)
Paragraph
Page
Number
Title
Number
Section 9
IEEE 1149.1 Test Access Port
9.1
Overview ............................................................................................... 9-1
9.2
TAP Controller ...................................................................................... 9-2
9.3
Boundary Scan Register ....................................................................... 9-3
9.4
Instruction Register ............................................................................... 9-10
9.4.1
EXTEST (000) ................................................................................... 9-10
9.4.2
SAMPLE/PRELOAD (001) ................................................................ 9-11
9.4.3
BYPASS (X1X, 101) .......................................................................... 9-11
9.4.4
HI-Z (100) .......................................................................................... 9-11
9.5
MC68349 Restrictions........................................................................... 9-12
9.6
Non-IEEE 1149.1 Operation ................................................................. 9-12
Section 10
Applications
10.1
Minimum System Configuration ............................................................ 10-1
10.1.1
Processor Clock Circuitry .................................................................. 10-1
10.1.2
Reset Circuitry ................................................................................... 10-3
10.1.3
SRAM Interface ................................................................................. 10-3
10.1.4
ROM Interface ................................................................................... 10-4
10.1.5
Serial Interface .................................................................................. 10-5
10.2
Memory Interface Information ............................................................... 10-5
10.2.1
Access Time Calculations ................................................................. 10-5
10.2.2
Calculating Frequency-Adjusted Output............................................ 10-7
10.2.3
Interfacing an 8-Bit Device to 16-Bit Memory
Using Single-Address DMA Mode ................................................... 10-9
10.3
Power Consumption Considerations..................................................... 10-10
Section 11
Electrical Characteristics
11.1
Maximum Ratings ................................................................................. 11-1
11.2
Thermal Characteristics ........................................................................ 11-1
11.3
Power Considerations ........................................................................... 11-2
11.4
AC Electrical Specification Definitions .................................................. 11-3
11.5
DC Electrical Specifications .................................................................. 11-5
11.6
AC Electrical Specifications Control Timing .......................................... 11-6
11.7
AC Timing Specifications ...................................................................... 11-8
11.8
DMA Module AC Electrical Specifications ............................................ 11-19
11.9
Serial Module Electrical Specifications ................................................. 11-20
11.10
IEEE 1149.1 Electrical Specifications ................................................... 11-22