IXF1104
•SPHY or 4 x 8 mode (four individual
5.2.1MPHY Operation
The MPHY operation mode is selected when bit 21 of the“SPI3 Transmit and Global Configuration ($0x700)” is set to 0 and bit 7 of the “SPI3 Receive Configuration ($0x701)" is set to 1.
Data Path
The IXF1104 SPI3 interface has a single
To support
The IXF1104 port selection is performed using
In the receive direction, the IXF1104 specifies the selected port by sending the address on the RDAT[1:0] bus marked with the RSX signal active and RVAL signal inactive. All subsequent RDAT[1:0] bus operations marked with RSX inactive and RVAL active are packet data from the specified port.
Note: See Table 17 “SPI3 MPHY/SPHY Interface” on page 58 for a complete list of the MPHY mode signals. The control signals with the port designator for Port 0 are the only ones used in MPHY mode and they apply to all 4 ports. Table 3 “SPI3 Interface Signal Descriptions” on page 38 provides a comprehensive list of SPI3 signal descriptions.
5.2.1.1SPI3 RX Round Robin Data Transmission
The IXF1104 uses a
5.2.2MPHY Logical Timing
The SPI3 interface AC timing for MPHY can be found in Section 7.2, “SPI3 AC Timing Specifications” on page 136. Logical timing in the following diagrams illustrates all signals associated with MPHY mode.
Datasheet | 83 |
Document Number: 278757
Revision Number: 007
Revision Date: March 25, 2004