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Section 9 Exception Handling
Rev. 4.00 Sep. 14, 2005 Page 198 of 982
REJ09B0023-0400
9.1 Register
Descriptions
There are three registers for exception handling. A register with an undefined initial value should
be initialized by the software.
•
TRAPA exception register (TRA)
•
Exception event register (EXPEVT)
•
Interrupt event register 2 (INTEVT2)
Figure 9.1 shows the bit configuration of each register.
31
TRA
EXPEVT
INTEVT2
TRA
EXPEVT
INTEVT2
10 9
2 1 0
31
12 11
0
0
0
0
0
31
12 11
0
Figure 9.1 Register Bit Configuration
9.1.1
TRAPA Exception Register (TRA)
TRA is assigned to address H'FFFFFFD0 and consists of the 8-bit immediate data (imm) of the
TRAPA instruction. TRA is automatically specified by the hardware when the TRAPA instruction
is executed. Only bits 9 to 2 of the TRA can be re-written using the software.
Bit Bit
Name
Initial
Value R/W Description
31 to 10
R Reserved
These bits are always read as 0. The write value
should always be 0.
9 to 2
TRA
R/W
8-Bit Immediate Data
1, 0
R Reserved
These bits are always read as 0. The write value
should always be 0.
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Page 1036: ...SH7641 Hardware Manual...