SH3100 Datasheet, PDF (43/80 Pages) Semtech Corporation – Supervisory IC with I2C Interface and PWM

SH3100
POWER MANAGEMENT
Register Descriptions (continued)
Address(hex): 46
Register Name DCOCode
Bit 7
Bit 6
Bit 5
Bit No.
[6:0]
Description
DCOCode[6:0]
THIS REGISTER IS FUSE
INITIALIZED
Description
Bit 4
(R/W) Sets the default HFDCO
code for a free-running
(non-FLL Locked) HFDCO
Default Value: 0000 0000
Reset Event: P, W, B
Bit 3
Bit 2
Bit 1
Bit 0
Bit Value
DCOCode[6:0]
Value Description
See description for register 44
Note that this register may not be changed if the
App-specificFuseWP bit in the WriteProtects register is set
Address(hex): 47
Register Name I2CSlaveAddr
Bit 7
Bit 6
Bit 5
Bit No.
[2:0]
Description
I2CSlaveAddr[2:0]
THIS REGISTER IS FUSE
INITIALIZED
Description
Bit 4
Bit Value
(R/W) Least significant 3 bits of Default Value: 0000 0000
the I²C slave address.
Reset Event: P, W, B
Bit 3
Bit 2
Bit 1
Bit 0
I2CSlaveAddr[2:0]
Value Description
The least significant 3 bits of the I²C slave address. The I²C
slave address in its entirety is 0100XYZ where
XYZ = I2CSlaveAddr
Careful selection of these bits allows the SH3100 to share an
I²C bus with a number of other devices, including other
SH3100s
Note that this register may not be changed if the
App-specificFuseWP bit in the WriteProtects register is set
Address(hex): 48
Register Name TempTrim
Description
(R/W) Calibration register.
This register is for device calibration only.
Default Value: 0000 0000
Reset Event: P, W, B
© 2006 Semtech Corp.
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