Section 41 User Break Controller (UBC)
Rev. 1.00 Oct. 01, 2007 Page 1782 of 1956
REJ09B0256-0100
41.3.2
User Break Operation Sequence
The following describes the sequence from when the break condition is set until the user break
exception handling is initiated.
1. Specify the operand size, bus, instruction fetch/operand access, and read/write as the match
conditions using the match condition setting register (CBR0 or CBR1). Specify the break
address using the match address setting register (CAR0 or CAR1), and specify the address
mask condition using the match address mask setting register (CAMR0 or CAMR1). To
include the ASID in the match conditions, set the AIE bit in the match condition setting
register and specify the ASID value by the AIV bit in the same register. To include the data
value in the match conditions, set the DBE bit in the match condition setting register; specify
the break data using the match data setting register (CDR1); and specify the data mask
condition using the match data mask setting register (CDMR1). To include the execution
count in the match conditions, set the ETBE bit of the match condition setting register; and
specify the execution count using the execution count break register (CETR1). To use the
sequential break, set the MFE bit of the match condition setting register; and specify the
number of the first channel using the MFI bit.
2. Specify whether or not to request a break when the match condition is satisfied and the break
timing when the match condition is satisfied as a result of fetching the instruction using the
match operation setting register (CRR0 or CRR1). After having set all the bits in the match
condition setting register except the CE bit and the other necessary registers, set the CE bit and
read the match condition setting register again. This ensures that the set values in the control
registers are valid for the subsequent instructions immediately after reading the register.
Setting the CE bit of the match condition setting register in the initial state after reset via the
control registers may cause an undesired break.
3. When the match condition has been satisfied, the corresponding condition match flag (MF1 or
MF0) in the channel match flag register (CCMFR) is set. A break is also requested to the CPU
according to the set values in the match operation setting register (CRR0 or CRR1). The CPU
operates differently according to the BL bit value of the SR register: when the BL bit is 0, the
CPU accepts the break request and executes the specified exception handling; and when the
BL bit is 1, the CPU does not execute the exception handling.
4. The match flags (MF1 and MF0) can be used to confirm whether or not the corresponding
match condition has been satisfied. Although the flag is set when the condition is satisfied, it
is not cleared automatically; therefore, write 0 to the flag bit by issuing a memory store
instruction to the channel match flag register (CCMFR) in order to use the flag again.
5. Breaks may occur virtually at the same time for channels 0 and 1. In this case, only one break
request is sent to the CPU; however, the two condition match flags corresponding to these
breaks may be set.
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Page 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Page 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Page 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Page 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Page 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Page 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Page 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Page 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Page 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Page 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Page 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Page 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Page 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Page 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Page 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Page 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Page 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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