FDC37B787QF SMSC [SMSC Corporation], FDC37B787QF Datasheet - Page 187

• Manufacturer Part Number: FDC37B787QF
• Description: Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR
• Manufacturer: SMSC [SMSC Corporation]

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
0
0
0
1
1
1
1
1
1
0
0
0
1
1
1
1
1
1
OUT2 bit
UART2
UART2
Z
Z
Z
Z
asserted
de-asserted
asserted
de-asserted
asserted
de-asserted
Z
Z
asserted
de-asserted
asserted
de-asserted
asserted
de-asserted
IRQ State
UART2
190
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
Share
IRQ
Bit
Z
1
0
Z
Z
1
1
0
0
Z
1
0
1
0
1
1
1
0
Pin State
UART1
IRQ PINS
Z
Z
1
0
1
0
1
0
1
0
1
0
1
1
1
0
Z
Z
Pin State
UART2