– 9 –

CXA3541N

Serial Port Characteristics

ADR1

0

0

1

ADR0

0

1

0

DATA5

XSLP

GAIN

MROPN

DATA4

XIDL

BHV

MRSHT

DATA3

N/A

N/A

IW3

DATA2

N/A

IB2

IW2

DATA1

N/A

IB1

IW1

DATA0

HS

IB0

IW0

∗ IB[2:0] bits are initialized by "0" at power on.

Code Description

Bit

Function

XSLP

XIDL

HS

GAIN

BHV

IB[2:0]

MROPN

MRSHT

IW[3:0]

0 = Set the pre-amplifier into low power "sleep" mode.

0 = Set pre-amplifier to idle mode.

Head select bit.

Set the pre-amplifier to high or low gain mode. 1 = Set pre-amplifier to high gain mode.

Active the BHV test point pin. "1" active.

MR bias current set.

1 = Set MR head open detector active.

1 = Set MR head short detector active.

Set write current.