Section 6 User Break Controller (UBC)
Rev. 2.00 Mar 09, 2006 page 199 of 906
REJ09B0292-0200
Section 6 User Break Controller (UBC)
6.1
Overview
The user break controller (UBC) provides functions that simplify program debugging. When break
conditions are set in the UBC, a user break interrupt is generated according to the conditions of the
bus cycle generated by the CPU or on-chip DMAC (DMAC or E-DMAC).
This function makes it easy to design a sophisticated self-monitoring debugger, enabling programs
to be debugged with the chip alone, without using an in-circuit emulator.
6.1.1
Features
The UBC has the following features:
•
The following can be set as break conditions:
Number of break channels: Four (channels A, B, C, and D)
User break interrupts can be generated on independent or sequential conditions for
channels A, B, C, and D.
Sequential break settings
•
Channel A
→
channel B
→
channel C
→
channel D
•
Channel B
→
channel C
→
channel D
•
Channel C
→
channel D
1. Address: 32-bit masking capability, individual address setting possible (cache bus (CPU),
internal bus (DMAC, E-DMAC), X/Y bus)
2. Data (channels C and D only,): 32-bit masking capability, individual address setting
possible (cache bus (CPU), internal bus (DMAC, E-DMAC), X/Y bus)
3. Bus master: CPU cycle/on-chip DMAC (DMAC, E-DMAC) cycle
4. Bus cycle: Instruction fetch/data access
5. Read/write
6. Operand cycle: Byte/word/longword
•
User break interrupt generation on occurrence of break condition
A user-written user break interrupt exception routine can be executed.
•
Processing can be stopped before or after instruction execution in an instruction fetch cycle.
•
Break with specification of number of executions (channels C and D only)
Settable number of executions: maximum 2
12
– 1 (4095)
•
PC trace function
Summary of Contents for SH7616
Page 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Page 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Page 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Page 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Page 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Page 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Page 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Page 935: ...SH7616 Hardware Manual ...