saf1761 NXP Semiconductors, saf1761 Datasheet - Page 71
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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Table 68.
Table 69.
SAF1761_1
Product data sheet
Bit
DW0
31
30 to 29 Mult[1:0]
28 to 18 MaxPacket
17 to 3
2 to 1
0
b
1
2
3
4
5
6
7
8
9
Symbol
EndPt[0]
Length[10:0]
NrBytesTo
Transfer[14:0]
reserved
V
High-speed interrupt IN and OUT: bit description
Microframe description
8.5.4 Start and complete split for bulk
Rate
1 SOF
2 SOF
4 SOF
1 ms
2 ms
4 ms
8 ms
16 ms
32 ms
Table 70
asynchronous Start Split and Complete Split (SS/CS) Transfer Descriptor (TD).
Access
SW — writes
SW — writes
SW — writes
SW — writes
-
SW — sets
HW — resets
shows the bit allocation of Start Split (SS) and Complete Split (CS) for bulk,
0 0000b
0 0000b
0 0000b
0 0000b
0 0001b
0 0010b to 0 0011b
0 0100b to 0 0111b
0 1000b to 0 1111b
1 0000b to 1 1111b
Frame[7:3]
Value Description
-
-
-
-
-
-
Rev. 01 — 18 November 2009
Endpoint: This is the USB address of the endpoint within the
function.
Multiplier: This field is a multiplier counter used by the host controller
as the number of successive packets the host controller may submit
to the endpoint in the current execution.
Set this field to 01b. You can also set it to 11b and 10b, depending on
your application. 00b is undefined.
Maximum Packet Length: This field indicates the maximum number
of bytes that can be sent to or received from the endpoint in a single
data packet.
Number of Bytes to Transfer: This field indicates the number of
bytes that can be transferred by this data structure. It is used to
indicate the depth of the DATA field (32 kB
-
Valid:
0 — This bit is deactivated when the entire PTD is executed, or when
a fatal error is encountered.
1 — Software updates to one when there is payload to be sent or
received. The current PTD is active.
…continued
1111 1111b
1010 1010b or 0101 0101b
any 2 bits set
any 1 bit set
any 1 bit set
any 1 bit set
any 1 bit set
any 1 bit set
any 1 bit set
SA[7:0]
Hi-Speed USB OTG controller
1 B).
SAF1761
© NXP B.V. 2009. All rights reserved.
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