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Section 2 CPU
Rev. 4.00 Sep. 14, 2005 Page 34 of 982
REJ09B0023-0400
SSR
31
0
Saved status register (SSR)
SPC
31
0
Saved program counter (SPC)
GBR
31
0
Global base register
VBR
31
0
Vector base register
RS
31
0
Repeat start register
RE
31
0
Repeat end register
ME
MS
31
16 15
0
Modulo register
MOD
ME: Modulo end address, MS: Modulo start address
Saved status register (SSR)
Stores current SR value at time of exception to indicate processor status when returning to instruction stream from
exception handler.
Saved program counter (SPC)
Stores current PC value at time of exception to indicate return address on completion of exception handling.
Global base register (GBR)
Stores base address of GBR-indirect addressing mode. The GBR-indirect addressing mode is used for data transfer
and logical operations on the on-chip peripheral module register area.
Vector base register (VBR)
Stores base address of exception vector area.
Repeat start register (RS)
Used in DSP mode only. Indicates start address of repeat loop.
Repeat end register (RE)
Used in DSP mode only. Indicates address of repeat loop end.
Modulo register (MOD)
Used in DSP mode only.
MD[31:16]: ME: Modulo end address, MD[15:0]: Modulo start address.
In X/Y operand address generation, the CPU compares the address with ME, and if it is the same, loads MS in either
the X or Y operand address register (depending on bits DMX and DMY in the SR register).
Figure 2.5 Control Registers (2)
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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