Section 11 Local Bus State Controller (LBSC)
Rev. 1.00 Oct. 01, 2007 Page 386 of 1956
REJ09B0256-0100
11.5.6 MPX
Interface
When both the MODE4 and MODE3 pins are set to 0 at a power-on reset by the
PRESET
pin, the
MPX interface is selected for area 0. The MPX interface is selected for areas 1, 2, and 4 to 6 by
the MPX bit in CS1BCR, CS2BCR, and CS4BCR to CS6BCR. The MPX interface provides an
address/data multiplex-type bus protocol and facilitates connection with external memory
controller chips using an address/data multiplex-type 32-bit single bus. A bus cycle consists of an
address phase and a data phase. Address information is output on D25 to D0 and the access size is
output on D31 to D29 in the address phase. The
BS
signal is asserted for one cycle to indicate the
address phase. The
CSn
signal is asserted at the rising edge in Tm1 and is negated after the end of
the last data transfer in the data phase. Therefore, a negation cycle does not occur in the case of
minimum pitch access. The
FRAME
signal is asserted at the rising edge in Tm1 and negated at the
start of the last data transfer cycle in the data phase. Therefore, an external device for the MPX
interface must internally store the address information and access size output in the address phase
and perform data input/output for the data phase. For details, see section 11.5.1, Endian/Access
Size and Data Alignment.
Values output on address pins A25 to A20 are not guaranteed.
In 32-byte transfer, a total of 32 bytes are transferred continuously according to the set bus width.
The first access is performed on the data for which there was an access request, and the remaining
accesses are performed according to the set bus width. If the access size is larger than the bus
width in this case, a burst access with continuing multiple data cycle occurs after one address
output. The bus is not released during this transfer.
D31 D30 D29 Access
Size
0 0 0 Byte
1
Word
1 0 Longword
1
Quadword
1 X X 32-byte
burst
[Legend]
X: Don't
care
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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Page 2026: ...SH7763 Hardware Manual ...