Maxim Integrated DS4830A Optical Microcontroller - Manual (Page 178)

DS4830A User’s Guide
178
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[15:0]
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.