SAF1760BE/V1,557 NXP Semiconductors, SAF1760BE/V1,557 Datasheet - Page 38

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

Specifications of SAF1760BE/V1,557

• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
Table 28.
Table 29.
Table 30.
SAF1760_1
Product data sheet
Bit
31 to 0
Bit
31 to 0
Bit
31 to 0
Symbol
INT_PTD_LAST
_PTD[31:0]
Symbol
INT_PTD_SKIP
_MAP[31:0]
INT PTD Done Map register (address 0140h) bit description
INT PTD Skip Map register (address 0144h) bit description
INT PTD Last PTD register (address 0148h) bit description
Symbol
INT_PTD_DONE_
MAP[31:0]
8.2.10 INT PTD Done Map register
8.2.11 INT PTD Skip Map register
8.2.12 INT PTD Last PTD register
respective memory space, would be checked, especially if only a few PTDs are defined.
The LastPTD bit must be normally set to a higher position than any other position
indicated by the NextPTDPointer from an active PTD.
The bit description of the register is given in
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.
Table 29
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 be normally set on the position indicated by NextPTDPointer.
The bit description of the 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 be normally set to a higher position than any other position
indicated by the NextPTDPointer from an active PTD.
Access
R/W
Access Value
R/W
Access
R
shows the bit description of the INT PTD Skip Map register.
0000 0000h
Value
FFFF FFFFh
Value
0000 0000h INT PTD Done Map: Done map for each of the 32 PTDs for the
Rev. 01 — 9 November 2009
Description
INT PTD Last PTD: Last PTD of the 32 PTDs.
1h — One PTD in INT
2h — Two PTDs in INT
3h — Three PTDs in INT
Description
INT PTD Skip Map: Skip map for each of the 32 PTDs for the INT
transfer
Description
INT transfer
Table
Table
Embedded Hi-Speed USB host controller
28.
30.
SAF1760
© NXP B.V. 2009. All rights reserved.
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