FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 191
FDC37B78X
Manufacturer Part Number
FDC37B78X
Description
Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
Manufacturer
SMSC Corporation
Datasheet
1.FDC37B78X.pdf
(258 pages)
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This part of the table is based on the assumption that both UARTS have selected different
IRQ pins
0
1
1
0
0
1
1
1
1
0
1
1
0
0
1
1
1
1
It is the responsibility of the software to ensure that two IRQ’s are not set to the same IRQ
number. However, if they are set to the same number then no damage to the chip will result.
OUT2 bit
UART1
UART1
Z
asserted
de-asserted
Z
Z
asserted
asserted
de-asserted
de-asserted
Z
asserted
de-asserted
Z
Z
asserted
asserted
de-asserted
de-asserted
IRQ State
UART1
TABLE 79 - UART INTERRUPT OPERATION
OUT2 bit
0
0
0
1
1
1
1
1
1
0
0
0
1
1
1
1
1
1
UART2
UART2
Z
Z
Z
asserted
de-asserted
asserted
de-asserted
asserted
de-asserted
Z
Z
Z
asserted
de-asserted
asserted
de-asserted
asserted
de-asserted
IRQ State
UART2
191
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
Share IRQ
Bit
Pin State
Z
1
0
Z
Z
1
1
0
0
Z
1
0
1
0
1
1
1
0
UART1
IRQ PINS
Z
Z
Z
1
0
1
0
1
0
Z
1
0
1
0
1
1
1
0
Pin State
UART2
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