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Ds4830 user’s guide – Maxim Integrated DS4830 Optical Microcontroller User Manual

Page 168

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DS4830 User’s Guide

168


21.3.7

– In-Circuit Debug Data Register (ICDD, M2[1Eh])

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

ICDD.15

ICDD.14

ICDD.13

ICDD.12

ICDD.11

ICDD.10

ICDD.9

ICDD.8

ICDD.7

ICDD.6

ICDD.5

ICDD.4

ICDD.3

ICDD.2

ICDD.1

ICDD.0

Reset

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Access

r

r

r

r

r

r

r

r

r

r

r

r

r

r

r

r


This register is used by the debug engine to store data or read count so that ROM code can view that information. This
register is also used by the debug engine as a data register for content matching when BP5 is used as a register
breakpoint. In this case, only data bits in this register with their corresponding mask bits in the ICDA register set will be
compared with the updated destination data to determine if a break should be generated.