Rainbow Electronics LM93 User Manual

Page 6

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Table of Contents

(Continued)

16.7.3 Registers 90–AFh

Voltage Limit Registers ................................................................................... 58

16.7.4 Register B0–B1h

PROCHOT User Limit Registers ...................................................................... 59

16.7.5 Register B2–B3h

Dynamic Vccp Limit Offset Registers ............................................................... 60

16.7.6 Register B4–BBh

Fan Tach Limit Registers ................................................................................. 61

16.8 SETUP REGISTERS ............................................................................................................................. 62

16.8.1 Register BCh

Special Function Control 1 (Voltage Hysteresis and Fan Control Filter Enable) ... 62

16.8.2 Register BDh

Special Function Control 2 (Smart Tach Mode Enable and Fan Control Temperature

Resolution Control) ..................................................................................................................................... 63
16.8.3 Register BEh

GPI/VID Level Control ............................................................................................ 63

16.8.4 Register BFh

PWM Ramp Control ................................................................................................ 64

16.8.5 Register C0h

Fan Boost Hysteresis (Zones 1/2) .......................................................................... 64

16.8.6 Register C1h

Fan Boost Hysteresis (Zones 3/4) .......................................................................... 65

16.8.7 Register C2h

Zones 1/2 Spike Smoothing Control ....................................................................... 65

16.8.8 Register C3h

Zones 1/2 MinPWM and Hysteresis ....................................................................... 66

16.8.9 Register C4h

Zones 3/4 MinPWM and Hysteresis ....................................................................... 66

16.8.10 Register C5h

GPO ...................................................................................................................... 67

16.8.11 Register C6h

PROCHOT Override .............................................................................................. 68

16.8.12 Register C7h

PROCHOT Time Interval ...................................................................................... 69

16.8.13 Register C8h

PWM1 Control 1 ................................................................................................... 70

16.8.14 Register C9h

PWM1 Control 2 ................................................................................................... 71

16.8.15 Register CAh

PWM1 Control 3 ................................................................................................... 72

16.8.16 Register CBh

Special Function PWM1 Control 4 ....................................................................... 72

16.8.17 Register CCh

PWM2 Control 1 ................................................................................................... 73

16.8.18 Register CDh

PWM2 Control 2 ................................................................................................... 74

16.8.19 Register CEh

PWM2 Control 3 ................................................................................................... 75

16.8.20 Register CFh

Special Function PWM2 Control 4 ....................................................................... 75

16.8.21 Register D0h–D3h

Zone 1 to 4 Base Temperatures .................................................................. 76

16.8.22 Register D4h–DFh

Lookup Table Steps — Zone 1/2 and Zone 3/4 Offset Temperature ........... 76

16.8.23 Register E0h

Special Function TACH to PWM Binding .............................................................. 77

16.8.24 Register E2h

LM93 Status Control ............................................................................................. 78

16.8.25 Register E3h

LM93 Configuration ............................................................................................... 79

16.9 SLEEP STATE CONTROL AND MASK REGISTERS .......................................................................... 80

16.9.1 Register E4h

Sleep State Control ................................................................................................ 80

16.9.2 Register E5h

S1 GPI Mask ........................................................................................................... 81

16.9.3 Register E6h

S1 Tach Mask ......................................................................................................... 81

16.9.4 Register E7h

S3 GPI Mask ........................................................................................................... 82

16.9.5 Register E8h

S3 Tach Mask ......................................................................................................... 82

16.9.6 Register E9h

S3 Temperature/Voltage Mask ................................................................................ 82

16.9.7 Register EAh

S4/5 GPI Mask ....................................................................................................... 83

16.9.8 Register EBh

S4/5 Temperature/Voltage Mask ............................................................................ 83

16.10 OTHER MASK REGISTERS ............................................................................................................... 84

16.10.1 Register ECh

GPI Error Mask ..................................................................................................... 84

16.10.2 Register EDh

Miscellaneous Error Mask .................................................................................... 84

16.10.3 Register EEh

Special Function Zone 1 Adjustment Offset ......................................................... 85

16.10.4 Register EFh

Special Function Zone 2 Adjustment Offset ......................................................... 85

17.0 Absolute Maximum Ratings ..................................................................................................................... 86
18.0 Operating Ratings

................................................................................................................................... 86

19.0 Data Sheet Version History ...................................................................................................................... 91
20.0 Physical Dimensions ................................................................................................................................ 92

LM93

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