Section 6 Memory Management Unit (MMU)
Rev. 1.00 Oct. 01, 2007 Page 185 of 1956
REJ09B0256-0100
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UB: Buffered write bit
Specifies whether a buffered write is performed.
0: Buffered write (Subsequent processing proceeds without waiting for the write to complete.)
1: Unbuffered write (Subsequent processing is stalled until the write has completed.)
In a memory-mapped TLB access, the UB bit can be read from or written to by bit 9 in the data
array.
PTEL:
The same UB bit as that in the PMB is added in bit 9 in PTEL. This UB bit is written to
the UB bit in the UTLB by the LDTLB instruction. The PPN field is extended to bits 31 to 10.
CCR.CB:
The CB bit in CCR is invalid. Whether a cacheable write for the P1 area is performed
in copy-back mode or write-though mode is determined by the WT bit in the PMB.
IRMCR.MT:
The MT bit in IRMCR is valid for a memory-mapped PMB write.
QACR0, QACR1:
AREA0[4:2]/AREA1[4:2] fields of QACR0/QACR1 are extended to
AREA0[7:2]/AREA1[7:2] corresponding to physical address [31:26]. See section 7.2.2, Queue
Address Control Register 0 (QACR0) and section 7.2.3, Queue Address Control Register 1
(QACR1).
LSA0, LSA1, LDA0, LDA1:
L0SADR, L1SADR, L0DADR and L1DADR fields are extended to
bits 31 to 10. See section 8.2.2, L Memory Transfer Source Address Register 0 (LSA0), section
8.2.3, L Memory Transfer Source Address Register 1 (LSA1), section 8.2.4, L Memory Transfer
Destination Address Register 0 (LDA0), and section 8.2.5, L Memory Transfer Destination
Address Register 1 (LDA1).
When using 32-bit address mode, the following notes should be applied to software.
1. For the SE bit switching, only switching from 0 to 1 is supported in Cache and MMU disabled
boot routine after a power-on reset or manual reset.
2. After switching the SE bit, an area in which the program is allocated becomes the target of the
PMB address translation. Therefore, the area should be recorded in the PMB before switching
the SE bit. An address which may be accessed in the P1 or P2 area such as the exception
handler should also be recorded in the PMB.
3. When an external memory access occurs by an operand memory access located before the
MOV.L instruction which switches the SE bit, external memory space addresses accessed in
both address modes should be the same.
4. Note that the V bit is mapped to both address array and data array in PMB registration. That is,
first write 0 to the V bit in one of arrays and then write 1 to the V bit in another array.
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
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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