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IT8705F V0.4
77
Functional Description
9.5.3
Registers
9.5.3.1
Address Port (Base+05h, Default=00h):
Bit
Description
7
Outstanding; Read only
This bit is set when a data write is performed to Address Port via the LPC Bus.
6-0
Index: Internal Address of RAM and Registers.
Table 9-2. Environment Controller Registers
Index
R/W
Default
Registers or Action
00h
R/W
08h
Configuration
01h
R
00h
Interrupt Status 1
02h
R
00h
Interrupt Status 2
03h
R
00h
Interrupt Status 3
04h
R/W
00h
SMI# Mask 1
05h
R/W
00h
SMI# Mask 2
06h
R/W
00h
SMI# Mask 3
07h
R/W
00h
Interrupt Mask 1
08h
R/W
00h
Interrupt Mask 2
09h
R/W
00h
Interrupt Mask 3
0Ah
R
-
Reserved Register
0Bh
R/W
09h
Fan Tachometer Divisor Register
0Ch
R/W
00h
Fan Tachometer 16-bit Counter Enable Register
0Dh
R
-
Fan Tachometer 1 Reading Register
0Eh
R
-
Fan Tachometer 2 Reading Register
0Fh
R
-
Fan Tachometer 3 Reading Register
10h
R/W
-
Fan Tachometer 1 Limit Register
11h
R/W
-
Fan Tachometer 2 Limit Register
12h
R/W
-
Fan Tachometer 3 Limit Register
13h
R/W
00h
Fan Controller Main Control Register
14h
R/W
00h
FAN_CTL Control Register
15h
R/W
00h
FAN_CTL1 PWM Control Register
16h
R/W
00h
FAN_CTL2 PWM Control Register
17h
R/W
00h
FAN_CTL3 PWM Control Register
18h
R
-
Fan Tachometer 1 Extended Reading Register
19h
R
-
Fan Tachometer 2 Extended Reading Register
1Ah
R
-
Fan Tachometer 3 Extended Reading Register
1Bh
R/W
-
Fan Tachometer 1 Extended Limit Register
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