ISP1161A1BD,118 NXP Semiconductors, ISP1161A1BD,118 Datasheet - Page 21
ISP1161A1BD,118
Manufacturer Part Number
ISP1161A1BD,118
Description
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1161A1BD118.pdf
(137 pages)
Specifications of ISP1161A1BD,118
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / Rohs Status
Compliant
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Philips Semiconductors
9397 750 13961
Product data
Fig 20. HC interrupt logic.
HcInterruptEnable
HcInterruptStatus
register
register
RHSC
RHSC
FNO
FNO
MIE
UE
RD
SO
UE
RD
SO
SF
SF
There are two groups of interrupts represented by group 1 and group 2 in
A pair of registers control each group.
Group 2 contains six possible interrupt events (recorded in the HcInterruptStatus
register). On occurrence of any of these events, the corresponding bit would be set to
logic 1; and if the corresponding bit in the HcInterruptEnable register is also logic 1,
the 6-input OR gate would output a logic 1. This output is AND-ed with the value of
MIE (bit 31 of HcInterruptEnable). Logic 1 at the AND gate will cause bit OPR in the
Hc PInterrupt register to be set to logic 1.
Group 1 contains six possible interrupt events, one of which is the output of group 2
interrupt sources. The Hc PInterrupt and Hc PInterruptEnable registers work in the
same way as the HcInterruptStatus and HcInterruptEnable registers in the interrupt
group 2. The output from the 6-input OR gate is connected to a latch, which is
controlled by InterruptPinEnable (bit 0 of the HcHardwareConfiguration register).
In the event in which the software wishes to temporarily disable the interrupt output of
the ISP1161A1 Host Controller, the following procedure should be followed:
1. Make sure that bit InterruptPinEnable in the HcHardwareConfiguration register is
2. Clear all bits in the Hc PInterrupt register.
3. Set bit InterruptPinEnable to logic 0.
set to logic 1.
group 2
OR
Rev. 03 — 23 December 2004
INT1
HcµPInterrupt
register
USB single-chip host and device controller
LATCH
OR
LE
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
HcµPInterruptEnable
HcHardwareConfiguration
register
ISP1161A1
InterruptPinEnable
register
Figure
MGT945
20 of 136
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