Registers; Full Speed Vs. Low Speed Usb - Analog Devices ADSP-BF535 Blackfin Hardware Reference Manual

Registers

If the external transceiver supports a low power mode, it can be controlled
by using one of the programmable flag pins.
D+
D-
Figure 14-2. Connecting a USB Transceiver

Full Speed vs. Low Speed USB

The USB 1.1 specification supports two speed grades: full speed
(12 Mbits/sec) and low speed (1.5 Mbits/sec). The ADSP-BF535 proces-
sor is configured to support full-speed operation at all times. The external
transceiver must also be configured to support the fast slew rate of the
full-speed USB mode.
Registers
This section describes the register set for the USBD module. All USBD
memory-mapped registers are 16 bits wide, and 16-bit aligned.
The registers are grouped into three categories: general registers, DMA
registers, and endpoint registers.
14-14
RCV
VP
VM
VPO
/OE
VMO
USB PORT TRANSCEIVER
ADSP-BF535 Blackfin Processor Hardware Reference
XVER_DATA
DPLS
DMNS
TXDPLS
TXEN
TXDMNS
USB MODULE