saf1761 NXP Semiconductors, saf1761 Datasheet - Page 100
saf1761
Manufacturer Part Number
saf1761
Description
Hi-speed Universal Serial Bus On-the-go Controller
Manufacturer
NXP Semiconductors
Datasheet
1.SAF1761.pdf
(166 pages)
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SAF1761_1
Product data sheet
10.2 Endpoint description
Setting bit GDMA Stop in the DMA Command register (address: 0230h) will force the
DMA to stop and bit GDMA_STOP in the DMA Interrupt Reason register (address: 0250h)
will be set to indicate this event.
Setting bit Reset DMA in the DMA Command register (address: 0230h) will force the DMA
to stop and initialize the DMA core to its power-on reset state.
Each USB peripheral is logically composed of several independent endpoints. An
endpoint acts as a terminus of a communication flow between the USB host and the USB
peripheral. At design time, each endpoint is assigned a unique endpoint identifier; see
Table
enumeration), the endpoint number, and the transfer direction allows each endpoint to be
uniquely referenced.
The peripheral controller has 8 kB of internal FIFO memory, which is shared among the
enabled USB endpoints. The two control endpoints are fixed 64 bytes long. Any of the
seven IN and seven OUT endpoints can separately be enabled or disabled. The endpoint
type (interrupt, isochronous or bulk) and packet size of these endpoints can individually be
configured, depending on the requirements of the application. Optional double buffering
increases the data throughput of these data endpoints.
Table 96.
Endpoint
identifier
EP0SETUP
EP0RX
EP0TX
EP1RX
EP1TX
EP2RX
EP2TX
EP3RX
EP3TX
EP4RX
EP4TX
EP5RX
EP5TX
EP6RX
EP6TX
EP7RX
EP7TX
96. The combination of the peripheral address (given by the host during
Endpoint access and programmability
Maximum packet
size
8 bytes (fixed)
64 bytes (fixed)
64 bytes (fixed)
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
Rev. 01 — 18 November 2009
Double buffering Endpoint type
no
no
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
set-up token
control OUT
control IN
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
programmable
Hi-Speed USB OTG controller
SAF1761
© NXP B.V. 2009. All rights reserved.
Direction
OUT
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
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