Section 41 User Break Controller (UBC)
Rev. 1.00 Oct. 01, 2007 Page 1795 of 1956
REJ09B0256-0100
41.6 Usage
Notes
1. A desired break may not occur between the time when the instruction for rewriting the UBC
register is executed and the time when the written value is actually reflected on the register.
After the UBC register is updated, execute one of the following three methods.
A. Read the updated UBC register, and execute a branch using the RTE instruction.
(It is not necessary that a branch using the RTE instruction is next to a reading UBC
register.)
B. Execute the ICBI instruction for any address (including non-cacheable area).
(It is not necessary that the ICBI instruction is next to a reading UBC register.)
C. Set 0(initial value) to IRMCR.R1 before updating the UBC register and update with
following sequence.
a. Write the UBC register.
b. Read the UBC register which is updated at 1.
c. Write the value which is read at 2 to the UBC register.
Note: When two or more UBC registers are updated, executing these methods at each updating
the UBC registers is not necessary. At only last updating the UBC register, execute one of
these methods.
2. The PCB bit of the CRR0 and CRR1 registers is valid only when the instruction fetch is
specified as the match condition.
3. If the sequential break conditions are set, the sequential break conditions are satisfied when the
conditions for the first and second channels in the sequence are satisfied in this order.
Therefore, if the conditions are set so that the conditions for channels 0 and 1 should be
satisfied simultaneously for the same bus cycle, the sequential break conditions will not be
satisfied, causing no break.
4. For the SLEEP instruction, do not allow the post-instruction-execution break where the
instruction fetch cycle is the match condition. For the instructions preceding the SLEEP
instruction by one to five instructions, do not allow the break where the operand access is the
match condition.
5. If the user break and other exceptions occur for the same instruction, they are determined
according to the specified priority. For the priority, refer to section 5, Exception Handling. If
the exception having the higher priority occurs, the user break does not occur.
The pre-instruction-execution break is accepted prior to any other exception.
Содержание SH7763
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Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
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Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
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Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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