EVAL-ADT7463EB ON Semiconductor, EVAL-ADT7463EB Datasheet - Page 42

• Manufacturer Part Number: EVAL-ADT7463EB
• Manufacturer: ON Semiconductor

Specifications of EVAL-ADT7463EB

• Lead Free Status / RoHS Status: Supplier Unconfirmed

ADT7463
Register Address
0x5F
0x60
0x61
Bit
<2:0>
<3>
<7:4>
*These registers become read-only when the Configuration Register 1 Lock bit is set. Any further attempts to write to these registers shall have no effect.
Name
FREQ
THRM
RANGE
R/W*
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Table XX. TEMP T
Description
Remote 1 T
Local Temp T
Remote 2 T
Description
These bits control the PWMx frequency.
000 = 11.0 Hz
001 = 14.7 Hz
010 = 22.1 Hz
011 = 29.4 Hz
100 = 35.3 Hz (Default)
101 = 44.1 Hz
110 = 58.8 Hz
111 = 88.2 Hz
THRM = 1 causes the THERM pin (Pin 14 or 20) to assert low as an output when this
temperature channel’s THERM limit has been exceeded by 0.25 C. The THERM pin
remains asserted until the temperature is equal to or below the THERM limit. The
minimum time that THERM asserts for is one monitoring cycle. This allows clock modu-
lation of devices that incorporate this feature.
THRM = 0 makes the THERM pin act as an input only, e.g., for Pentium 4 PROCHOT
monitoring, when Pin 14 or 20 is configured as THERM.
These bits determine the PWM duty cycle versus the temperature slope for
automatic fan control.
0000 = 2 C
0001 = 2.5 C
0010 = 3.33 C
0011 = 4 C
0100 = 5 C
0101 = 6.67 C
0110 = 8 C
0111 = 10 C
1000 = 13.33 C
1001 = 16 C
1010 = 20 C
1011 = 26.67 C
1100 = 32 C (Default)
1101 = 40 C
1110 = 53.33 C
1111 = 80 C
RANGE
RANGE
RANGE
RANGE
/PWM 1 Frequency
/PWM 3 Frequency
–42–
/PWM 2 Frequency
/PWM Frequency Registers
Power-On Default
0xC4
0xC4
0xC4
REV. C