Texas Instruments DM6467 Digital Video Evaluation Module TMDXEVM6467T TMDXEVM6467T Datenbogen
Produktcode
TMDXEVM6467T
SPRS605C – JULY 2009 – REVISED JUNE 2012
7.21 VLYNQ
The DM6467T VLYNQ peripheral provides a high speed serial communications interface with the following
features.
features.
•
Low Pin Count
•
Scalable Performance/Support
•
Simple Packet Based Transfer Protocol for Memory Mapped Access
–
–
Write Request/Data Packet
–
Read Request Packet
–
Read Response Data Packet
–
Interrupt Request Packet
•
Supports both Symmetric and Asymmetric Operation
–
–
Tx pins on first device connect to Rx pins on second device and vice versa
–
Data pin widths are automatically detected after reset
–
Request packets, response packets, and flow control information are all multiplexed and sent
across the same physical pins
across the same physical pins
–
Supports both Host/Peripheral and Peer-to-Peer communication
•
Simple Block Code Packet Formatting (8-bit/10-bit)
•
In Band Flow Control
–
–
No extra pins needed
–
Allows receiver to momentarily throttle back transmitter when overflow is about to occur
–
Uses built in special code capability of block code to seamlessly interleave flow control information
with user data
with user data
–
Allows system designer to balance cost of data buffering versus performance
•
Multiple outstanding transactions
•
Automatic packet formatting optimizations
•
Internal loop-back mode
7.21.1 VLYNQ Bus Master Memory Map
The VLYNQ peripheral includes a bus master interface that allows external device initiated transfers to
access the DM6467T system bus.
access the DM6467T system bus.
shows the memory map for the VLYNQ master interface.
Table 7-94. VLYNQ Master Memory Map
SIZE
START ADDRESS
END ADDRESS
HPI ACCESS
(BYTES)
0x0000 0000
0x01BF FFFF
28M
Reserved
0x01C0 0000
0x0FFF FFFF
228M
CFG Bus Peripherals
0x1000 0000
0x1000 FFFF
64K
Reserved
0x1001 0000
0x1001 3FFF
16K
ARM RAM 0 (Data)
0x1001 4000
0x1001 7FFF
16K
ARM RAM 1 (Data)
0x1001 8000
0x1001 FFFF
32K
ARM ROM (Data)
294
Peripheral Information and Electrical Specifications
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