W83783S Information Storage Devices, Inc, W83783S Datasheet - Page 21

• Manufacturer Part Number: W83783S
• Description: H/w Monitor: 3 Temp.(thermal Diode), 6 Vol., 2 PWM Fan Control
• Manufacturer: Information Storage Devices, Inc

6.5 Temperature Measurement Machine
The temperature data format is 8-bit two ’s -complement for sensor 2 and 9-bit two -complement for
sensor 1. The 8-bit temperature data can be obtained by reading the CR[27h]. The 9-bit temperature
data can be obtained by reading the 8 MSBs from the Bank1 CR[50h] and the LSB from the Bank1
CR[51h] bit 7. The format of the temperature data is show in Table 1.
Temperature
+125øC
+0.5øC
-0.5øC
+25øC
-25øC
-55øC
+1øC
+0øC
-1øC
PWM Clock Input
8-Bit Binary
0111,1101
0001,1001
0000,0001
0000,0000
1111,1111
1110,0111
1100,1001
8-Bit Digital Output
-
-
G
- 16 -
D
S
R1
NMOS
8-Bit Hex
Table 2.
Figure 14.
7Dh
FFh
E7h
C9h
19h
01h
00h
+12V
-
-
R2
+
-
PNP Transistor
C
0,1111,1010
0,0011,0010
0,0000,0010
0,0000,0001
0,0000,0000
1,1111,1111
1,1111,1110
1,1100,1110
1,1001,0010
9-Bit Binary
Publication Release Date: April 1999
FAN
9-Bit Digital Output
9-Bit Hex
W83783S
Preliminary
1CEh
0FAh
1FFh
1FFh
032h
002h
001h
000h
192h
Revision 0.55