Section 2 Programming Model
Rev. 1.00 Oct. 01, 2007 Page 47 of 1956
REJ09B0256-0100
(2) Saved Status Register (SSR) (32 bits, Privileged Mode, Initial Value = Undefined)
The contents of SR are saved to SSR in the event of an exception or interrupt.
(3) Saved Program Counter (SPC) (32 bits, Privileged Mode, Initial Value = Undefined)
The address of an instruction at which an interrupt or exception occurs is saved to SPC.
(4) Global Base Register (GBR) (32 bits, Initial Value = Undefined)
GBR is referenced as the base address of addressing @(disp,GBR) and @(R0,GBR).
(5) Vector Base Register (VBR) (32 bits, Privileged Mode, Initial Value = H'00000000)
VBR is referenced as the branch destination base address in the event of an exception or interrupt.
For details, see section 5, Exception Handling.
(6) Saved General Register 15 (SGR) (32 bits, Privileged Mode, Initial Value = Undefined)
The contents of R15 are saved to SGR in the event of an exception or interrupt.
(7) Debug Base Register (DBR) (32 bits, Privileged Mode, Initial Value = Undefined)
When the user break debugging function is enabled (CBCR.UBDE = 1), DBR is referenced as the
branch destination address of the user break handler instead of VBR.
2.2.5 System
Registers
(1) Multiply-and-Accumulate Registers (MACH and MACL) (32 bits, Initial Value =
Undefined)
MACH and MACL are used for the added value in a MAC instruction, and to store the operation
result of a MAC or MUL instruction.
(2) Procedure Register (PR) (32 bits, Initial Value = Undefined)
The return address is stored in PR in a subroutine call using a BSR, BSRF, or JSR instruction. PR
is referenced by the subroutine return instruction (RTS).
(3) Program Counter (PC) (32 bits, Initial Value = H'A0000000)
PC indicates the address of the instruction currently being executed.
Summary of Contents for SH7763
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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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