Section 25 Stream Interface (STIF)
Rev. 1.00 Oct. 01, 2007 Page 1021 of 1956
REJ09B0256-0100
(2) Clock Valid Transmission
(a) Clock Valid Transmission Interface
•
Timing chart
Figure 25.5 shows the timing of the clock valid transmission interface.
ST_CLK (input/output)
ST_START (output)
ST_VALID (output)
ST_REQ (input)
ST_D7 to ST_D0
(output)
Figure 25.5 Clock Valid Transmission Timing
•
I/O selection for ST_CLK pin
For the ST_CLK pin, input of an external clock or output of an internally generated clock can
be selected by the CKSL bit in STIMDR (maximum frequency is 33 MHz).
•
Active level setting for ST_START, ST_VALID, and ST_REQ pins
The active levels of the ST_START, ST_VALID, and ST_REQ pins can be set by the STAT,
VLD, and REQ bits in STIMDR, respectively.
•
Selection of ST_REQ pin usage
Whether or not to use the ST_REQ pin can be selected by the REQEN bit in STIMDR.
When usage of the ST_REQ pin is enabled, the ST_VALID pin is negated within four bytes
after assertion of the ST_REQ pin.
When usage of the ST_REQ pin is disabled, the ST_VALID pin is not negated until 188 or
192 bytes have been transferred.
(b) Transmit Packet Length
The transmit packet length can be selected from 188 and 192 bytes.
Since the packet length is handled as 192 bytes in external memory, the first four bytes of a packet
are removed before transmission when the transmit packet length is set to 188 bytes. When the
transmit packet length is set to 192 bytes, external memory data is transmitted without changes.
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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