Section 8 L Memory
Rev. 1.00 Oct. 01, 2007 Page 230 of 1956
REJ09B0256-0100
of the OCBWB instruction) to the PPN field. The ASID, V, SZ, SH, PR, and D bits have the same
meaning as normal address conversion; however, the C and WT bits have no meaning in this page.
When the PREF instruction is issued to the L memory area, address conversion is performed in
order to generate the physical address bits [28:10] in accordance with the SZ bit specification. The
physical address bits [9:5] are generated from the virtual address prior to address conversion. The
physical address bits [4:0] are fixed to 0. Block transfer is performed to the L memory from the
external memory which is specified by these physical addresses.
When the OCBWB instruction is issued to the L memory area, address conversion is performed in
order to generate the physical address bits [28:10] in accordance with the SZ bit specification. The
physical address bits [9:5] are generated from the virtual address prior to address conversion. The
physical address bits [4:0] are fixed to 0. Block transfer is performed from the L memory to the
external memory specified by these physical addresses.
In PREF or OCBWB instruction execution, an MMU exception is checked as read type. After the
MMU execution check, a TLB miss exception or protection error exception occurs if necessary. If
an exception occurs, the block transfer is inhibited.
(2) When MMU is Disabled (MMUCR.AT = 0) or RAMCR.RP = 0
The transfer source physical address in block transfer to page 0 in the L memory is set in the
L0SADR bits of the LSA0 register. And the L0SSZ bits in the LSA0 register choose either the
virtual addresses specified through the PRFF instruction or the L0SADR values as bits 15 to 10 of
the transfer source physical address. In other words, the transfer source area can be specified in
units of 1 Kbyte to 64 Kbytes.
The transfer destination physical address in block transfer from page 0 in the L memory is set in
the L0DADR bits of the LDA0 register. And the L0DSZ bits in the LDA0 register choose either
the virtual addresses specified through the OCBWB instruction or the L0DADR values as bits 15
to 10 of the transfer destination physical address. In other words, the transfer source area can be
specified in units of 1 Kbyte to 64 Kbytes.
Block transfer to page 1 in the L memory is set to LSA1 and LDA1 as with page 0 in the L
memory.
When the PREF instruction is issued to the L memory area, the physical address bits [28:10] are
generated in accordance with the LSA0 or LSA1 specification. The physical address bits [9:5] are
generated from the virtual address. The physical address bits [4:0] are fixed to 0. Block transfer is
performed from the external memory specified by these physical addresses to the L memory.
Содержание SH7763
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Страница 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Страница 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Страница 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Страница 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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Страница 2026: ...SH7763 Hardware Manual ...