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DRA790 Datasheet, PDF (270/436 Pages) Texas Instruments – Infotainment Applications Processor
◁
DRA790, DRA791
DRA793, DRA797
SPRS968A – AUGUST 2016 – REVISED FEBRUARY 2017
www.ti.com
5.9.6.20 MLB
The MLBSS allows connection to a MOST (Media Oriented Systems Transport) network controller for
transport of media and control data between multimedia nodes. The MLBSS supports the following
features:
• 3 pin mode compliant to MediaLB Physical Layer Specification v4.0
• 6 pin mode (3 differential pairs) compliant to MediaLB Physical Layer Specification v4.0
• Supports 256/512/1024Fs in 3 pin mode and 2048Fs in 6 pin mode
• Supports all types of transfer (Sync, Isoc, Async/Packet, Control) over 64 logical channels
• 16KB buffering for synchronous /isochronous/control/packet data in the subsystem
NOTE
For more information, see the Media Local Bus (MLB) section of the Device TRM.
NOTE
MLB in 6-pin mode may require pull ups/ downs on SIG and DAT bus signals. For additional
details, please consult the MLB bus interface specification.
Table 5-110 and Figure 5-74 present Timing Requirements for MLKCLK 3-Pin Option.
Table 5-110. Timing Requirements for MLBCLK 3-Pin Option (1)
NO.
PARAMETER
DESCRIPTION
MODE
1
tc(MLBCLK)
Cycle time, MLB_CLK
512FS
1024FS
2
tw(MLBCLK)
Pulse duration, MLB_CLK high
512FS
1024FS
3
tw(MLBCLK)
Pulse duration, MLB_CLK low
512FS
1024FS
(1) The reference points for the rise and fall transitions are measured at VOL MAX and VOH MIN.
MIN
39
19.5
14
9.3
14
6.1
2
1
4
MAX
UNIT
ns
ns
ns
ns
ns
ns
MLB_CLK
3
Figure 5-74. MLB_CLK Timing
4
SPRS906_TIMING_MLB_01
Table 5-111 and Table 5-112 present Timing Requirements and Switching Characteristics for MLB 3-Pin
Option.
Table 5-111. Timing Requirements for Receive Data for the MLB 3-Pin Option
NO.
PARAMETER
DESCRIPTION
MODE
5
tsu(MLBDAT-MLBCLKL) Setup time, MLB_DAT/MLB_SIG input valid before MLB_CLK
512FS
low
1024FS
6
th(MLBCLKL-MLBDAT) Hold time, MLB_DAT/MLB_SIG input valid after MLB_CLK
512FS
low
1024FS
MIN MAX UNIT
1
ns
1
ns
4
ns
2
ns
270 Specifications
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