11/2/95
SECTION 1: OVERVIEW
UM Rev 1
Freescale Semiconductor, Inc.
TABLE OF CONTENTS (Continued)
Paragraph
Number
Page
Number
Title
4.2.4.2
4.2.5
4.2.5.1
4.2.5.2
4.2.6
4.2.7
4.3
4.3.1
4.3.2
4.3.2.1
4.3.2.2
4.3.2.3
4.3.2.4
4.3.2.5
4.3.2.6
4.3.2.7
4.3.2.8
4.3.3
Global Chip Select Operation ................................................................4-14
External Bus Interface Operation...............................................................4-15
Port A...........................................................................................................4-15
Port B...........................................................................................................4-16
Low-Power Stop...........................................................................................4-17
Freeze.............................................................................................................4-17
Programming Model.........................................................................................4-18
Module Base Address Register (MBAR)...................................................4-20
System Configuration and Protection Registers.....................................4-21
Module Configuration Register (MCR)..................................................4-21
Autovector Register (AVR).......................................................................4-23
Reset Status Register (RSR)...................................................................4-23
Software Interrupt Vector Register (SWIV)...........................................4-24
System Protection Control Register (SYPCR).....................................4-24
Periodic Interrupt Control Register (PICR)...........................................4-26
Periodic Interrupt Timer Register (PITR)...............................................4-27
Software Service Register (SWSR) ......................................................4-28
Clock Synthesizer Control Register (SYNCR)........................................4-28
Chip Select Registers..................................................................................4-29
Base Address Registers ..........................................................................4-30
Address Mask Registers..........................................................................4-31
Chip Select Registers Programming Example....................................4-33
External Bus Interface Control....................................................................4-33
Port A Pin Assignment Register 1 (PPARA1).......................................4-33
Port A Pin Assignment Register 2 (PPARA2).......................................4-34
Port A Data Direction Register (DDRA).................................................4-34
Port A Data Register (PORTA)................................................................4-34
Port B Pin Assignment Register (PPARB)............................................4-35
Port B Data Direction Register (DDRB).................................................4-35
Port B Data Register (PORTB, PORTB1) ..............................................4-35
MC68340 Initialization Sequence.................................................................4-36
Startup ............................................................................................................4-36
SIM40 Module Configuration.....................................................................4-36
SIM40 Example Configuration Code........................................................4-38
4.3.4
4.3.4.1
4.3.4.2
4.3.4.3
4.3.5
4.3.5.1
4.3.5.2
4.3.5.3
4.3.5.4
4.3.5.5
4.3.5.6
4.3.5.7
4.4
4.4.1
4.4.2
4.4.3
Section 5
CPU32
5.1
Overview.............................................................................................................5-1
Features..........................................................................................................5-2
Virtual Memory..............................................................................................5-2
Loop Mode Instruction Execution..............................................................5-3
5.1.1
5.1.2
5.1.3
MOTOROLA
MC68340 USER'S MANUAL
vii
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