ISP1160BM,518 NXP Semiconductors, ISP1160BM,518 Datasheet - Page 45

• Manufacturer Part Number: ISP1160BM,518
• Manufacturer: NXP Semiconductors

Specifications of ISP1160BM,518

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Package Type: PQFP
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Table 24.
ISP1160-01_7
Product data sheet
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HcFmNumber register: bit allocation
10.2.3 HcFmNumber register (R: 0FH)
31
23
15
R
R
R
R
0
0
0
7
0
Table 23.
The HcFmNumber register is a 16-bit counter. It provides a timing reference for events
happening in the HC and the HCD. The HCD may use the 16-bit value specified in this
register and generate a 32-bit frame number without requiring frequent access to the
register.
Code (Hex): 0F — read
Table 25.
Bit
31
30 to 14
13 to 0
Bit
31 to 16
15 to 0
30
22
14
R
R
R
R
0
0
0
6
0
HcFmRemaining register: bit description
HcFmNumber register: bit description
Symbol
FRT
-
FR[13:0]
Symbol
-
FN[15:0]
29
21
13
R
R
R
R
0
0
0
5
0
Rev. 07 — 29 September 2009
Description
FrameRemainingToggle: This bit is loaded from the
FrameIntervalToggle field of the HcFmInterval register whenever
FrameRemaining reaches 0. This bit is used by the HCD for
synchronization between FrameInterval and FrameRemaining.
reserved
FrameRemaining: This counter is decremented at each bit time.
When it reaches zero, it is reset by loading the FrameInterval value
specified in the HcFmInterval register at the next bit time boundary.
When entering the USBOperational state, the HC reloads it with the
content of the FrameInterval part of the HcFmInterval register and
uses the updated value from the next SOF.
Description
reserved
FrameNumber: This is incremented when HcFmRemaining is
reloaded. It rolls over to 0000H after FFFFH. When the
USBOperational state is entered, this will be incremented
automatically. The HC will set bit StartofFrame in the HcInterruptStatus
register.
28
20
12
R
R
R
R
0
0
0
4
0
reserved
reserved
FN[15:8]
FN[7:0]
27
19
11
R
R
R
R
0
0
0
3
0
Embedded USB host controller
26
18
10
R
R
R
R
0
0
0
2
0
ISP1160/01
© ST-ERICSSON 2009. All rights reserved.
25
17
R
R
R
R
0
0
9
0
1
0
24
16
R
R
R
R
0
0
8
0
0
0
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