Section 7 User Break Controller (UBC)
Rev. 3.00 Sep. 27, 2007 Page 142 of 758
REJ09B0243-0300
Bus cycle: L bus/instruction fetch (after instruction execution)/read (operand size is not
included in the condition)
<Channel B>
Address:
H'00008010, Address mask: H'00000006
Data:
H'00000000, Data mask: H'00000000
Bus cycle: L bus/instruction fetch (before instruction execution)/read (operand size is not
included in the condition)
A user break occurs after an instruction with addresses H'00008000 to H'00008FFE is executed
or before an instruction with addresses H'00008010 to H'00008016 are executed.
Break Condition Specified for L Bus Data Access Cycle:
(Example 2-1)
•
Register specifications
BARA = H'00123456, BAMRA = H'00000000, BBRA = H'0064, BDRA = H'12345678,
BDMRA = H'FFFFFFFF, BARB = H'000ABCDE, BAMRB = H'000000FF, BBRB = H'006A,
BDRB = H'0000A512, BDMRB = H'00000000, BRCR = H'00000080
Specified conditions: Channel A/channel B independent mode
<Channel A>
Address:
H'00123456, Address mask: H'00000000
Data:
H'12345678, Data mask: H'FFFFFFFF
Bus cycle: L bus/data access/read (operand size is not included in the condition)
<Channel B>
Address:
H'000ABCDE, Address mask: H'000000FF
Data:
H'0000A512, Data mask: H'00000000
Bus cycle: L bus/data access/write/word
On channel A, a user break occurs with longword read from address H'00123454, word read
from address H'00123456, or byte read from address H'00123456. On channel B, a user break
occurs when word H'A512 is written in addresses H'000ABC00 to H'000ABCFE.
Содержание SH7124 R5F7124
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