F81866A Datasheet, PDF (85/210 Pages) Feature Integration Technology Inc. – 6 UARTs Super IO With 128 Bytes FIFO and Power

F81866A
This register controls the FAN3 duty movement when temperature over
highest boundary.
0: The FAN3 duty will increases with the slope selected by
FAN3_JUMP_
3
R/W 5VSB
1 FAN3_RATE_SEL register.
HIGH_EN
1: The FAN3 duty will directly jumps to the value of SEC1SPEED3
register.
This bit only activates in duty mode.
This register controls the FAN3 duty movement when temperature under
(highest boundary – hysteresis).
0: The FAN3 duty will decreases with the slope selected by
FAN3_JUMP_
2
R/W 5VSB
1 FAN3_RATE_SEL register.
LOW_EN
1: The FAN3 duty will directly jumps to the value of SEC2SPEED3
register.
This bit only activates in duty mode.
This registers companying with FAN3_TEMP_SEL_DIG select the
temperature source for controlling FAN3. The following value is
comprised by {FAN3_TEMP_SEL_DIG, FAN3_TEMP_SEL}
000: fan3 follows PECI temperature (CR7Eh)
001: fan3 follows temperature 1 (CR72h).
010: fan3 follows temperature 2 (CR74h).
1-0 FAN3_TEMP_SEL R/W 5VSB 11
011: fan3 follows temperature 0 (CR70h).
100: fan3 follows IBEX/TSI CPU temperature (CR7Ah)
101: fan3 follows IBEX PCH temperature (CR7Bh).
110: fan3 follows IBEX MCH temperature (CR7Ch).
111: fan3 follows IBEX maximum temperature (CR7Dh).
Otherwise: reserved.
6.5 Keyboard Controller
The KBC circuit provides the functions included a keyboard and/or a PS/2 mouse, and can be
used with IBM-compatible personal computers or PS/2-based systems. The controller receives serial
data from the keyboard or PS/2 mouse, checks the parity of the data, and presents the data to the
system as a byte of data in its output buffer. The controller will assert an interrupt to the system when
data are placed in its output buffer.
Output Buffer
The output buffer is an 8-bit read-only register at I/O address 60h. The keyboard controller
uses the output buffer to send the code received from the keyboard and data bytes required by
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Jan, 2012
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