11/2/95
TABLE OF CONTENTS (Continued)
Paragraph
Number
2.15
Test Signals....................................................................................................... 2-13
2.15.1
Test Clock (TCK)........................................................................................... 2-13
2.15.2
2.15.3
Test Data In (TDI).......................................................................................... 2-13
2.15.4
Test Data Out (TDO)..................................................................................... 2-13
2.16
2.17
2.18
Signal Summary............................................................................................... 2-13
3.1
Bus Transfer Signals........................................................................................ 3-1
3.1.1
Bus Control Signals ..................................................................................... 3-2
3.1.2
Function Code Signals................................................................................ 3-3
3.1.3
Address Bus (A31-A0) ................................................................................ 3-4
3.1.4
Address Strobe ( AS ).................................................................................... 3-4
3.1.5
Data Bus (D15-D0)...................................................................................... 3-4
3.1.6
Data Strobe ( DS )........................................................................................... 3-4
3.1.7
3.1.7.1
Bus Error ( BERR )....................................................................................... 3-5
3.1.7.2
Autovector ( AVEC ).................................................................................... 3-5
3.1.7.3
3.2
3.2.1
Dynamic Bus Sizing..................................................................................... 3-5
3.2.2
Misaligned Operands................................................................................... 3-7
3.2.3
3.2.3.1
3.2.3.2
3.2.3.3
3.2.3.4
3.2.3.5
3.2.3.6
3.2.3.7
3.2.4
Bus Operation................................................................................................ 3-14
3.2.5
3.2.6
3.3
Data Transfer Cycles........................................................................................ 3-16
3.3.1
Read Cycle..................................................................................................... 3-16
3.3.2
Write Cycle..................................................................................................... 3-18
3.3.3
MOTOROLA
Freescale Semiconductor, Inc.
SECTION 1: OVERVIEW
Title
).......................................................................... 2-13
Section 3
MC68340 USER'S MANUAL
For More Information On This Product,
Go to: www.freescale.com
and GND)................................................ 2-13
UM Rev 1
P a g e
Number
v