DRA722_17 Datasheet, PDF (286/408 Pages) Texas Instruments – Infotainment Applications Processor

DRA722, DRA724, DRA725, DRA726
SPRS956B – MARCH 2016 – REVISED JANUARY 2017
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NOTE
The Controller Area Network Interface x (x = 1 to 2) is also referred to as DCANx.
Table 7-66, Table 7-67 and Figure 7-52 present timing and switching characteristics for DCANx Interface.
Table 7-66. Timing Requirements for DCANx Receive⁽¹⁾
NO. PARAMETER
DESCRIPTION
f(baud)
Maximum programmable baud rate
1 t_w(DCANRX)
Pulse duration, receive data bit (DCANx_RX)
(1) H = period of baud rate, 1/programmed baud rate.
MIN
H - 15
NOM
MAX
1
H + 15
UNIT
Mbps
ns
Table 7-67. Switching Characteristics Over Recommended Operating Conditions for DCANx Transmit ⁽¹⁾
NO. PARAMETER
DESCRIPTION
f(baud)
Maximum programmable baud rate
2 t_w(DCANTX)
Pulse duration, transmit data bit (DCANx_TX)
(1) H = period of baud rate, 1/programmed baud rate.
MIN
H - 15
MAX
1
H + 15
UNIT
Mbps
ns
1
DCANx_RX
2
DCANx_TX
Figure 7-52. DCANx Timings
SPRS906_TIMING_DCAN_01
7.23 Ethernet Interface (GMAC_SW)
The three-port gigabit ethernet switch subsystem (GMAC_SW) provides ethernet packet communication
and can be configured as an ethernet switch. It provides the Gigabit Media Independent Interface (G/MII)
in MII mode, Reduced Gigabit Media Independent Interface (RGMII), Reduced Media Independent
Interface (RMII), and the Management Data Input/Output (MDIO) for physical layer device (PHY)
management.
NOTE
For more information, see the Ethernet Subsystem section of the Device TRM.
NOTE
The Gigabit, Reduced and Media Independent Interface n (n = 0 to 1) are also referred to as
MIIn, RMIIn and RGMIIn.
CAUTION
The I/O timings provided in this section are valid only if signals within a single
IOSET are used. The IOSETs are defined in Table 7-72, Table 7-75, Table 7-
80 and Table 7-87.
286 Timing Requirements and Switching Characteristics
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