isp1564 NXP Semiconductors, isp1564 Datasheet - Page 51

• Manufacturer Part Number: isp1564
• Description: Isp1564 Hi-speed Universal Serial Bus Pci Host Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 76.
Address: Content of the base address register + 34h
Table 77.
Address: Content of the base address register + 38h
[1]
ISP1564_1
Product data sheet
Bit
31
30 to 16
15 to 14
13 to 0
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
The reserved bits must always be written with the reset value.
Symbol
FIT
FSMPS[14:0]
reserved
FI[13:0]
HcFmInterval - Host Controller Frame Interval register bit description
HcFmRemaining - Host Controller Frame Remaining register bit allocation
11.1.15 HcFmRemaining register
FRT
R/W
R/W
R/W
R/W
31
23
15
0
0
0
7
0
reserved
This register is a 14-bit down counter showing the bit time remaining in the current frame.
Table 77
Description
Frame Interval Toggle: The HCD toggles this bit whenever it loads a new value to Frame
Interval.
FS Largest Data Packet: This field specifies the value that is loaded into the largest data
packet counter at the beginning of each frame. The counter value represents the largest amount
of data in bits that can be sent or received by the Host Controller in a single transaction at any
given time, without causing a scheduling overrun. The field value is calculated by the HCD.
-
Frame Interval: This specifies the interval between two consecutive SOFs in bit times. The
nominal value is set to 11,999. The HCD must store the current value of this field before
resetting the Host Controller to reset this field to its nominal value. The HCD can then restore
the stored value on completing the reset sequence.
[1]
R/W
R/W
R/W
R/W
30
22
14
0
0
0
6
0
contains the bit allocation of this register.
R/W
R/W
R/W
R/W
29
21
13
0
0
0
5
0
Rev. 01 — 4 December 2006
R/W
R/W
R/W
R/W
28
20
12
0
0
0
4
0
reserved
FR[7:0]
reserved
[1]
R/W
R/W
R/W
R/W
27
19
11
0
0
0
3
0
FR[13:8]
[1]
R/W
R/W
R/W
R/W
26
18
10
0
0
0
2
0
HS USB PCI Host Controller
R/W
R/W
R/W
R/W
25
17
0
0
9
0
1
0
© NXP B.V. 2006. All rights reserved.
ISP1564
R/W
R/W
R/W
R/W
24
16
0
0
8
0
0
0
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