MAS6512 datasheet(12/12 Pages) MAS

12 / 12 page

DA6512.000

11 July, 2012

12 (26)

OSCILLATOR FREQUENCY CONTROL REGISTER (E6/66HEX)

Note that the internal clock oscillator frequency has

been factory trimmed and the trim value has been

stored

the

EEPROM

(C6/46HEX).

recommended

not

change

the

factory

programmed value!

The oscillator frequency control register (E6/66HEX)

is for trimming the internal clock oscillator to 200

kHz

frequency.

This

200kHz

(or

100kHz

SOSCOUT=1) can be measured at the OSCOUT

pin. The six LSB bits adjust the oscillator period in

104ns steps. The period increases when the trim

value increases. Typically a register value of 28HEX

corresponds to the nominal 200kHz clock oscillator

frequency.

After finding a suitable trim value it can be stored to

the EEPROM (C6/46HEX).

Table 7.

Oscillator frequency control register (E6/66HEX)

Bit Number

Bit Name

Description

Value

Function

5-0

OSCF

Oscillator frequency

control bits

0HEX…3FHEX

Oscillator frequency control

EEPROM STATUS REGISTER (ED/6DHEX)

The EEPROM status register (ED/6DHEX) indicates

if the stored EEPROM byte is corrupted. The

read command. See table 8 below. The ERROR bit

tells whether an data error has been detected or

not. The DED bit tells whether two or more bit errors

have been detected. The EEPROM can correct

internally only single bit errors i.e. when ERROR=1

and DED=0. The read EEPROM data byte is

corrupted if ERROR=DED=1.

Table 8.

MAS6512 EEPROM status register (ED/6DHEX). Only bits (7:6) are used.

Bit Number

Bit Name

Description

Value

Function

ERROR

EEPROM error

detection

No errors

Error detected

DED

EEPROM double

error detection

No errors

2 (or more) data errors

5-0

X = Don’t care

MAS6512 bảng dữ liệu(PDF) 12 Page - Micro Analog systems

MAS6512 bảng dữ liệu(HTML) 12 Page - Micro Analog systems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

bảng dữ liệu tải về

Link URL