AMC6821 datasheet(38/57 Pages) TI2

tên linh kiện	AMC6821

Giải thích chi tiết về linh kiện	Intelligent Temperature Monitor and PWM Fan Controller

PDF	57 Pages

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nhà sản xuất	TI2 [Texas Instruments]

Trang chủ	https://www.ti.com

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AMC6821

SBAS386C – MAY 2006 – REVISED JULY 2007

Configuration Register 4 (Address 0x04, Value After Power-On Reset = 0x08)

BIT

NAME

R/W

DEFAULT

DESCRIPTION

MODE

R/W

Required configure bit: User must write a 1 to this location.

Number of pulses per revolution of the fan. Power-on default = 0. PLSPR = 0 for two

PSPR

R/W

pulses/revolution (default), PLSPR = 1 for four pulses per revolution.

When TACH-FAST = 1, the TACH data reading is updated every 250ms. This monitor is

TACH-FAST

R/W

the fast RPM monitor. When TACH-FAST = 0, the TACH data reading is updated every

second. Default = 0, power-on default = 0.

Setting this bit to '1' enables the OVR pin. Clearing this bit ('0') disables the OVR pin

OVREN

R/W

(high-impedance). Default = 0.

Reserved

Read back '1'.

Reserved

Read-back '0'.

Reserved

Read-back '0'.

Reserved

Read-back '0'.

Writing the reserved bit has no effect.

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