Section 6 Memory Management Unit (MMU)
Rev. 1.00 Oct. 01, 2007 Page 175 of 1956
REJ09B0256-0100
6.6.3
UTLB Address Array
The UTLB address array is allocated to addresses H'F600 0000 to H'F60F FFFF in the P4 area. An
address array access requires a 32-bit address field specification (when reading or writing) and a
32-bit data field specification (when writing). Information for selecting the entry to be accessed is
specified in the address field, and VPN, D, V, and ASID to be written to the address array are
specified in the data field.
In the address field, bits [31:20] have the value H'F60 indicating the UTLB address array and the
entry is specified by bits [13:8]. Bit [7] that is the association bit (A bit) in the address field
specifies whether address comparison is performed in a write to the UTLB address array.
In the data field, bits [31:10] indicate VPN, bit [9] indicates D, bit [8] indicates V, and bits [7:0]
indicate ASID.
The following three kinds of operation can be used on the UTLB address array:
1. UTLB address array read
VPN, D, V, and ASID are read into the data field from the UTLB entry corresponding to the
entry set in the address field. In a read, associative operation is not performed regardless of
whether the association bit specified in the address field is 1 or 0.
2. UTLB address array write (non-associative)
VPN, D, V, and ASID specified in the data field are written to the UTLB entry corresponding
to the entry set in the address field. The A bit in the address field should be cleared to 0.
3. UTLB address array write (associative)
When a write is performed with the A bit in the address field set to 1, comparison of all the
UTLB entries is carried out using the VPN specified in the data field and ASID in PTEH. The
usual address comparison rules are followed, but if a UTLB miss occurs, the result is no
operation, and an exception is not generated. If the comparison identifies a UTLB entry
corresponding to the VPN specified in the data field, D and V specified in the data field are
written to that entry. This associative operation is simultaneously carried out on the ITLB, and
if a matching entry is found in the ITLB, V is written to that entry. Even if the UTLB
comparison results in no operation, a write to the ITLB is performed as long as a matching
entry is found in the ITLB. If there is a match in both the UTLB and ITLB, the UTLB
information is also written to the ITLB.
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 ...
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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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