FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

IRQSER PERIOD

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IRQSER Sampling Periods

SIGNAL SAMPLED

Not Used

IRQ1

nSMI/IRQ2

IRQ3

IRQ4

IRQ5

IRQ6

IRQ7

IRQ8

IRQ9

IRQ10

IRQ11

IRQ12

IRQ13

IRQ14

IRQ15

# OF CLOCKS PAST START

2

5

8

11

14

17

20

23

26

29

32

35

38

41

44

47

Note: It is the responsibility of the software to ensure that two IRQ’s are not set to the same IRQ

number.

IRQSER Period 14 is used to transfer IRQ13.

The SIRQ data frame will now support IRQ2 Logical devices 0 (FDC), 3 (Par Port), 4 (Ser

from a logical device, previously IRQSER Period Port 1), 5 (Ser Port 2), 6 (RTC), and 7 (KBD)

3 was reserved for use by the System shall have IRQ13 as a choice for their primary

Management Interrupt (nSMI). When using interrupt.

Period 3 for IRQ2 the user should mask off the

SMI via the SMI Enable Register. Likewise, Note: When Serial IRQs are used, the RTC

when using Period 3 for nSMI the user should

not configure any logical devices as using IRQ2.

IRQ, nSCI and nSMI may be output on one of

their respective pin options. See the IRQ

MUX Configuration Register.

120

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