MBF110PFW1STG View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MBF110PFW1STG

Solid-State Fingerprint Sensor

Fujitsu 

MBF110

DCR (A3-A0 Address 0101) Write Only

Discharge Current Register

MSB

LSB

BIT7

BIT6

BIT5

BIT4

BIT3

BIT2

BIT1

BIT0

F2

F1

TRST

DC4

DC3

DC2

DC1

DC0

Bit Number

Bit Name

Function

These two bits tell the chip the frequency of the external oscillator or crystal that is connected to the chip.

F2

F1

XTAL Input

[7:6]

F2, F1

0

0

10-15 MHz

0

1

15-20 MHz

1

0

20-30 MHz

1

1

30-40 MHz

Timer Reset. Set this bit to halt and reset the Discharge Timer. Resetting the Discharge Timer is necessary to put

the Discharge Timer in a known state after power-up or after returning to Normal mode from Low-power mode

5

TRST

(See bit 7 of DTR).

y TRST=0,Normal Timer Operation

r TRST=1,Halt and Clear Discharge Timer (doesn’t clear DTR)

[4:0]

DC[4:0]

Selects the Discharge Current source value.

ina RSR (A3-A0 Address 0110) Write Only

Reserved

m The user must initialize this resistor to zero.

li MSB

BIT7

Pre –

BIT6

–

BIT5

–

BIT4

–

BIT3

–

BIT2

–

BIT1

–

LSB

BIT0

–

Bit Number

Bit Name

Function

[7:0]

–

Reserved. Write 0 to these bits.

Fujitsu Microelectronics, Inc. 7

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