![](http://datasheet.mmic.net.cn/290000/XPC801ZP25_datasheet_16187868/XPC801ZP25_15.png)
TABLE OF CONTENTS (Continued)
Paragraph
Number
Page
Number
Title
MOTOROLA
MPC801 USER’S MANUAL
xvii
18.4
18.4.1
18.5
18.5.1
18.5.2
18.5.2.1
18.5.2.2
18.5.2.3
18.5.2.4
18.5.2.5
18.5.2.6
18.5.2.7
18.5.2.8
18.5.2.9
18.5.3
18.5.3.1
18.5.3.2
18.5.4
The Software Monitor Debugger ......................................................18-40
Freeze Indication ....................................................................18-41
Programming the Development Support Registers ..........................18-41
Protecting the Development Port Registers ...........................18-41
Development Port Registers ..................................................18-42
Comparator A–D Value Register ................................18-42
Comparator E–F Value Register .................................18-42
Comparator G–H Value Register ................................18-42
Breakpoint Address Register ......................................18-42
Instruction Support Control Register ...........................18-43
Load/Store Support Comparators Control Register ....18-46
Load/Store Support AND–OR Control Register ..........18-48
Breakpoint Counter A Value and Control Register .....18-50
Breakpoint Counter B Value and Control Register .....18-51
Debug Mode Registers ...........................................................18-51
Interrupt Cause Register .............................................18-51
Debug Enable Register ...............................................18-53
Development Port Data Register ............................................18-55
Section 19
IEEE 1149.1 Test Access Port
19.1
19.2
19.3
19.3.1
19.3.2
19.3.3
19.3.4
19.3.5
19.4
19.5
19.6
The TAP Controller .............................................................................19-3
The Boundary Scan Register .............................................................19-4
The Instruction Register ...................................................................19-17
The External Test Instruction .................................................19-18
The sample/preload Instruction ..............................................19-18
The bypass Instruction ...........................................................19-18
The clamp Instruction .............................................................19-19
The hi-z Instruction .................................................................19-19
MPC801 Restrictions ........................................................................19-19
Nonscan Chain Operation ................................................................19-19
Motorola MPC801 BSDL Description ...............................................19-19