FDC37B787QF SMSC [SMSC Corporation], FDC37B787QF Datasheet - Page 145
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FDC37B787QF
Manufacturer Part Number
FDC37B787QF
Description
Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.FDC37B787QF.pdf
(249 pages)
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66 the divider control bits can select the operating
mode, or be used to hold the divider chain reset
which allows precision setting of the time. When
the divider chain is changed from reset to the
operating mode, the first update cycle is one-half
second later. The divider control bits are also used
to facilitate testing of the RTC.
147
Periodic Interrupt Selection
The periodic interrupt allows the IRQB port to be
triggered from once every 500 ms to once every
122.07 μs. As Table 67 shows, the periodic
interrupt is selected with the RS0-RS3 bits in
Register A. The periodic interrupt is enabled with
the PIE bit in Register B.
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