ISP1760ET,557

Manufacturer Part NumberISP1760ET,557
ManufacturerNXP Semiconductors
ISP1760ET,557 datasheet
 


Specifications of ISP1760ET,557

Package TypeTFBGAPin Count128
Lead Free Status / RoHS StatusCompliant  
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NXP Semiconductors
Table 66.
High-speed bulk IN and OUT: bit description
Bit
Symbol
Access
56 to 55
Cerr[1:0]
HW — writes
SW — writes
54 to 51
NakCnt[3:0]
HW — writes
SW — writes
50 to 47
reserved
-
46 to 32
NrBytes
HW — writes
Transferred
SW — writes
[14:0]
0000
DW2
31 to 29
reserved
-
28 to 25
RL[3:0]
SW — writes
24
reserved
-
23 to 8
DataStart
SW — writes
Address[15:0]
7 to 0
reserved
-
DW1
63 to 47
reserved
-
46
S
SW — writes
45 to 44
EPType[1:0]
SW — writes
43 to 42
Token[1:0]
SW — writes
41 to 35
DeviceAddress
SW — writes
[6:0]
34 to 32
EndPt[3:1]
SW — writes
ISP1760_4
Product data sheet
Embedded Hi-Speed USB host controller
…continued
Value Description
-
Error Counter: This field corresponds to the Cerr[1:0] field in TD.
The default value of this field is zero for isochronous transactions.
00 — The transaction will not retry.
11 — The transaction will retry three times. Hardware will
decrement these values.
-
NAK Counter: This field corresponds to the NakCnt field in TD.
Software writes for the initial PTD launch. The V bit is reset if
NakCnt decrements to zero and RL is a nonzero value. It reloads
from RL if transaction is ACK-ed.
-
-
-
Number of Bytes Transferred: This field indicates the number of
bytes sent or received for this transaction. If Mult[1:0] is greater than
one, it is possible to store intermediate results in this field.
-
Set to 0 for asynchronous TD.
-
Reload: If RL is set to 0h, hardware ignores the NakCnt value. RL
and NakCnt are set to the same value before a transaction.
-
Always 0 for asynchronous TD.
-
Data Start Address: This is the start address for data that will be
sent or received on or from the USB bus. This is the internal
memory address and not the direct CPU address.
RAM address = (CPU address
-
-
-
Always 0 for asynchronous TD.
-
This bit indicates whether a split transaction has to be executed:
0 — High-speed transaction
1 — Split transaction
-
Transaction type:
00 — Control
10 — Bulk
-
Token: Identifies the token Packet Identifier (PID) for this
transaction:
00 — OUT
01 — IN
10 — SETUP
11 — PING (written by hardware only)
-
Device Address: This is the USB address of the function containing
the endpoint that is referred to by this buffer.
-
Endpoint: This is the USB address of the endpoint within the
function.
Rev. 04 — 4 February 2008
ISP1760
400h) / 8
© NXP B.V. 2008. All rights reserved.
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