F81866A Datasheet, PDF (196/210 Pages) Feature Integration Technology Inc. – 6 UARTs Super IO With 128 Bytes FIFO and Power

F81866A
IRQ_MODE1 and IRQ_MODE0 will select the UART5 interrupt mode if IRQ
sharing is enabled.
00 : Sharing IRQ active low Level mode.
3
IRQ_MODE1
R/W LRESET# 0 ^{01 : Sharing IRQ active high edge mode.}
10 : Sharing IRQ active high Level mode.
11 : Reserved.
This bit is effective at IRQ is sharing with the other device (IRQ_SHARE, bit 1).
2
Reserved
-
-
- Reserved.
Select the FIFO depth.
00: 16-byte FIFO.
1-0
FIFO_MODE
R/W LRESET# 00h 01: 32-byte FIFO.
10: 64-byte FIFO.
11: 128-byte FIFO.
196
Jan, 2012
V0. 12P