FDC37C669-MT SMSC, FDC37C669-MT Datasheet - Page 135

• Manufacturer Part Number: FDC37C669-MT
• Description: IC CTRLR SUPER I/O FLPPY 100TQFP
• Manufacturer: SMSC

Specifications of FDC37C669-MT

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 25mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1008

It is the responsibility of the software to ensure that two IRQ's are not set to the same IRQ number. Potential
damage to chip may result.
OUT2 bit
UART1
0
1
1
0
0
1
1
1
1
0
1
1
0
0
1
1
1
1
UART1
Output State
UART1 IRQ
de-asserted
de-asserted
de-asserted
de-asserted
de-asserted
de-asserted
asserted
asserted
asserted
asserted
asserted
asserted
Z
Z
Z
Z
Z
Z
Table 60 - UART Interrupt Operation Table
OUT2 bit
UART2
0
0
0
1
1
1
1
1
1
0
0
0
1
1
1
1
1
1
UART2
UART2 IRQ Output
de-asserted
de-asserted
de-asserted
de-asserted
de-asserted
de-asserted
asserted
asserted
asserted
asserted
asserted
asserted
135
State
Z
Z
Z
Z
Z
Z
Share IRQ
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
Pin State
UART1
Z
Z
Z
Z
1
0
1
1
0
0
1
0
1
0
1
1
1
0
IRQ PINS
Pin State
UART2
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
1
0
1
0
1
0