ISP1561BMUM ST-Ericsson Inc, ISP1561BMUM Datasheet - Page 71

• Manufacturer Part Number: ISP1561BMUM
• Description: IC USB HOST CTRL HI-SPD 128LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1561BMUM

• Controller Type: USB Peripheral Controller
• Interface: PCI
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: ISP1561BM-T; ISP1561BM-T

NXP Semiconductors
ISP1561_2
Product data sheet
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
LHCR
R/W
R/W
23
15
0
0
7
0
-
Table 104. USBCMD register: bit description
Bit
31 to
24
23 to
16
15 to 8
7
IAAD
R/W
R/W
22
14
0
0
6
0
-
Symbol Description
-
ITC[7:0]
-
LHCR
reserved
Interrupt Threshold Control: Default 08h. This field is used by system
software to select the maximum rate at which the Host Controller will issue
interrupts. If software writes an invalid value to this register, the results are
undefined. Valid values are:
00h — reserved
01h — 1 micro frame
02h — 2 micro frames
04h — 4 micro frames
08h — 8 micro frames (equals 1 ms)
10h — 16 micro frames (equals 2 ms)
20h — 32 micro frames (equals 4 ms)
40h — 64 micro frames (equals 8 ms)
Software modifications to this field while HCH (HC Halted) bit is zero results in
undefined behavior.
reserved
Light Host Controller Reset: This control bit is not required. It allows the
driver software to reset the EHCI controller, without affecting the state of the
ports or the relationship to the companion Host Controllers. If not
implemented, a read of this field will always return zero. If implemented, on
read:
Logic 0 — Indicates the Light Host Controller Reset has completed and it is
ready for the host software to re-initialize the Host Controller
Logic 1 — Indicates the Light Host Controller Reset has not yet completed
R/W
ASE
R/W
21
13
0
0
5
0
-
Rev. 02 — 5 March 2007
PSE
R/W
R/W
20
12
0
0
4
0
-
reserved
ITC[7:0]
R/W
R/W
19
11
1
0
3
0
-
FLS[1:0]
R/W
R/W
18
10
0
0
2
0
-
HS USB PCI Host Controller
RESET
R/W
R/W
HC
17
0
9
0
1
0
-
© NXP B.V. 2007. All rights reserved.
ISP1561
R/W
R/W
70 of 103
RS
16
0
8
0
0
0
-