SAF1760BE/V1,557 NXP Semiconductors, SAF1760BE/V1,557 Datasheet - Page 39

• Manufacturer Part Number: SAF1760BE/V1,557
• Manufacturer: NXP Semiconductors

Specifications of SAF1760BE/V1,557

• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
Table 31.
Table 32.
Table 33.
SAF1760_1
Product data sheet
Bit
31 to 0
Bit
31 to 0
Bit
31 to 0
Symbol
ATL_PTD_LAST
_PTD[31:0]
Symbol
ATL_PTD_DONE_
MAP[31:0]
Symbol
ATL_PTD_SKIP_
MAP[31:0]
ATL PTD Done Map register (address 0150h) bit description
ATL PTD Skip Map register (address 0154h) bit description
ATL PTD Last PTD register (address 0158h) bit description
8.2.13 ATL PTD Done Map register
8.2.14 ATL PTD Skip Map register
8.2.15 ATL PTD Last PTD register
Table 31
This register represents a direct map of the done status of the 32 PTDs. The bit
corresponding to a certain PTD will be set to logic 1 as soon as that PTD execution is
completed. Reading the Done Map register will clear all the bits that are set to logic 1, and
the next reading will reflect the updated status of new executed PTDs.
The bit description of the register is given in
When a bit in the PTD Skip Map is set to logic 1, the corresponding PTD will be skipped,
independent of the V bit setting. The information in that PTD is not processed. For
example, NextPTDPointer will not affect the order of processing of PTDs. The Skip bit
must not normally be set on the position indicated by NextPTDPointer.
The bit description of the ATL PTD Last PTD register is given in
Once the LastPTD bit corresponding to a PTD is set, this will be the last PTD processed
(checking V = logic 1) in that PTD category. Subsequently, the process will restart with the
first PTD of that group. This is useful to reduce the time in which all the PTDs, the
respective memory space, would be checked, especially if only a few PTDs are defined.
The LastPTD bit must normally be set to a higher position than any other position
indicated by the NextPTDPointer from an active PTD.
Access Value
R/W
Access
R
Access
R/W
shows the bit description of the ATL PTD Done Map register.
0000 0000h ATL PTD Last PTD: Last PTD of the 32 PTDs as indicated by the 32
Value
0000 0000h
Value
FFFF FFFFh
Rev. 01 — 9 November 2009
Description
bitmap.
1h — One PTD in ATL
2h — Two PTDs in ATL
4h — Three PTDs in ATL
Description
ATL PTD Done Map: Done map for each of the 32 PTDs for
the ATL transfer
Description
ATL PTD Skip Map: Skip map for each of the 32 PTDs for the
ATL transfer
Table
Embedded Hi-Speed USB host controller
32.
Table
33.
SAF1760
© NXP B.V. 2009. All rights reserved.
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