Spectrum Digital TMS320DM6467 Technical Reference page 22

Spectrum Digital, Inc
2.7 Ethernet Interface
The TMS320DM6467 integrates an GMII/MII ethernet MAC on chip. This interface is
routed to the on board PHY via CBT switches. The EVM uses an Agere ET1011C PHY.
The interface is isolated and brought out to a RJ-45 connector with integrated
magnetics, J4. The ethernet address is stored in the I
manufacturing. The on board PHY can be disabled by pulling the MAC_EN pin high on
the daughter card connector DC_P1.
The RJ-45 has 2 LEDs integrated into its connector. The green LED indicates the
status of the ethernet's link status. When blinking, the yellow LED indicates Re/Tx
activity.
2.8 USB Interface
The EVM supports a hostmode USB II connector. The USB power is enabled via the
DRV_BUS signal on the EVM. The VBUS power is feed back to the on board CPLD
and is available for sampling on the CPU's GPO4 signal. The feedback on GPO4 must
be enabled in the CPLD Control Register 0, bit 6. The figure below illustrates this
function.
2-8
USB_DRVVBUS
TMS320DM6467
Figure 2-5, USB Interface
2
CPLD
Power
Transistor
USB_VBUS
GPO4
USB_DM
USB_DP
TMS320DM6467 EVM Technical Reference
C serial ROM during
USB
HOST
CONN