1N4007 Datasheet, PDF (219/236 Pages) Naina Semiconductor ltd. – General Purpose Rectifier 1.0A

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TMS320C6652, TMS320C6654
SPRS841D – MARCH 2012 – REVISED JUNE 2016
9 System Interconnect
On the C6654 and C6652 devices, the C66x CorePac, the EDMA3 transfer controller, and the system
peripherals are interconnected through the TeraNet, which is a nonblocking switch fabric enabling fast and
contention-free internal data movement. The TeraNet allows for low-latency, concurrent data transfers
between master peripherals and slave peripherals. The TeraNet also allows for seamless arbitration
between the system masters when accessing system slaves.
9.1 Internal Buses and Switch Fabrics
Two types of buses exist in the device: data buses and configuration buses. Some peripherals have both
a data bus and a configuration bus interface, while others have only one type of interface. Further, the bus
interface width and speed varies from peripheral to peripheral. Configuration buses are mainly used to
access the register space of a peripheral and the data buses are used mainly for data transfers.
The C66x CorePac, the EDMA3 traffic controller, and the various system peripherals can be classified into
two categories: masters and slaves. Masters can initiate read and write transfers in the system and do not
rely on the EDMA3 for their data transfers. Slaves, on the other hand, rely on the masters to perform
transfers to and from them. Examples of masters include the EDMA3 traffic controller and PCI Express.
Examples of slaves include the SPI, UART, and I²C.
The masters and slaves in the device communicate through the TeraNet (switch fabric). The device
contains two switch fabrics. The data switch fabric (data TeraNet) and the configuration switch fabric
(configuration TeraNet). The data TeraNet, is a high-throughput interconnect mainly used to move data
across the system. The data TeraNet connects masters to slaves through data buses. The configuration
TeraNet is mainly used to access peripheral registers. The configuration TeraNet connects masters to
slaves through configuration buses. The data TeraNet also connects to the configuration TeraNet. For
more details see Section 9.2.
9.2 Switch Fabric Connections Matrix
Table 9-1 and Table 9-2 list the master and slave end point connections.
Intersecting cells may contain one of the following:
• Y — There is a connection between this master and that slave.
• - — There is no connection between this master and that slave.
• n — A numeric value indicates that the path between this master and that slave goes through bridge n.
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System Interconnect 219