Micrel, Inc.

MIC280

May 5, 2014

21

Revision 2.0

Remote Temperature Low Limit High-Byte Register (TLOW1h) 8-bits, Read/Write

Remote Temperature Low Limit High-Byte Register

D[7]

read/write

D[6]

read/write

D[5]

read/write

D[4]

read/write

D[3]

read/write

D[2]

read/write

D[1]

read/write

D[0]

read/write

Low

temperature limit for remote zone, most significant byte.

Bit

Function

Operation

D[7:0]

Low temperature limit for the

remote zone, most significant byte.

Read/write

Each LSB represents one degree centigrade. The values are in a two’s complement binary format such that 0°C is

reported as 0000 0000b. See Temperature Data Format for more details.

Any writes to a temperature limit register will result in the corresponding fault queue being purged and reset.

Security Register (LOCK) 8-bits, Write once

Security Register

D[7]

reserved

D[6]

reserved

D[5]

reserved

D[4]

read/write-

once

D[3]

read/write-

once

D[2]

read/write-

once

D[1]

read/write-

once

D[0]

read/write-

once

Reserved

L4

L3

L2

L1

L0

Bit

Function

Operation

D[7:5]

Reserved

Always write as zero

L4

Warm-reset lockout bit

1 = RST bit disabled; 0 = unlocked

L3

Shutdown mode lockout bit

1 = shutdown disabled; 0 = unlocked

L2

Diode fault event lock bit

1 = locked; 0 = unlocked

L1

Remote overtemperature event lock bit

1 = locked; 0 = unlocked

L0

Local overtemperature event lock bit

1 = locked; 0 = unlocked