ISP1760ET,557 NXP Semiconductors, ISP1760ET,557 Datasheet - Page 33

• Manufacturer Part Number: ISP1760ET,557
• Manufacturer: NXP Semiconductors

Specifications of ISP1760ET,557

• Package Type: TFBGA
• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
ISP1760_4
Product data sheet
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
8.2.1 USBCMD register
8.2 EHCI operational registers
23
15
R
R
R
0
0
7
1
Table 14.
[1]
The USB Command (USBCMD) register indicates the command to be executed by the
serial host controller. Writing to this register causes a command to be executed.
shows the USBCMD register bit allocation.
Bit
31 to 16
15 to 8
7 to 4
3
2
1
0
For details on register bit description, refer to
Universal Serial Bus Rev.
22
14
R
R
R
0
0
6
0
Symbol
-
EECP[7:0] EHCI Extended Capabilities Pointer: Default = implementation
IST[3:0]
-
ASPC
PFLF
-
HCCPARAMS - Host Controller Capability Parameters register (address 0008h) bit
description
IST[3:0]
21
13
R
R
R
0
0
5
0
Description
reserved; write logic 0
dependent. This optional field indicates the existence of a capabilities list.
Isochronous Scheduling Threshold: Default = implementation
dependent. This field indicates, relative to the current position of the
executing host controller, where software can reliably update the
isochronous schedule.
reserved; write logic 0
Asynchronous Schedule Park Capability: Default = implementation
dependent. If this bit is set to logic 1, the host controller supports the park
feature for high-speed Transfer Descriptors in the Asynchronous
Schedule.
Programmable Frame List Flag: Default = implementation dependent. If
this bit is cleared, the system software must use a frame list length of
1024 elements with this host controller.
If PFLF is set, the system software can specify and use a smaller frame
list and configure the host through the Frame List Size (FLS) field of the
USBCMD register.
reserved; write logic 0
Rev. 04 — 4 February 2008
1.0”.
20
12
R
R
R
0
0
4
0
[1]
EECP[7:0]
reserved
Ref. 2 “Enhanced Host Controller Interface Specification for
reserved
19
11
R
R
R
0
0
3
0
Embedded Hi-Speed USB host controller
ASPC
18
10
R
R
R
0
0
2
1
PFLF
17
R
R
R
0
9
0
1
1
© NXP B.V. 2008. All rights reserved.
ISP1760
reserved
Table 15
32 of 110
16
R
R
R
0
8
0
0
0