M21050 datasheet(39/70 Pages) MA-COM

39 / 70 page

Registers

21050-DSH-001-F

Mindspeed Technologies™

Mindspeed Proprietary and Confidential

2.1.21

Built In Self-Test (BIST) Transmitter Alarm

2.1.22

Internal Junction Temperature Monitor

2.1.23

Internal Junction Temperature Value

Table 2-21. Built In Self-Test (BIST) Transmitter Alarm (BISTtx_alarm: Address 1Fh)

Bits

Type

Default

Label

Description

tx_LOL

Loss of lock for the BIST Tx PLL (active when BISTtx_ctrl [1] = 1)

0b: Normal operation

1b: Loss of lock

6:5

R/W

00b

Reserved

N/A

4:0

R/W

00000b

MSPD internal

N/A

Table 2-22. Internal Junction Temperature Monitor (Temp_mon: Address 20h)

Bits

Type

Default

Label

Description

3:2

R/W

00b

Reserved

N/A

R/W

en_temp_mon

Power up and enable the temperature monitor

1b: Power up and enable temperature monitor

0b: Disable temperature monitor

R/W

strobe_temp

Strobes ADC for temperature measurement

1b: Read temperature

0b: Ok to read temperature

Note: To strobe ADC, a rising edge should be provided by writing 1b,

then writing 0b to return to default state.

Table 2-23. Internal Junction Temperature Value (Temp_value: Address 21h)

Bits

Type

Default

Label

Description

3:0

N/A

temp

A read of these bits returns the temperature from the last write cycle (to

strobe_temp)

Junction Temperature

≥ 130°C

130

°C > Tc

≥ 120°C

120

°C > Tc

≥ 110°C

110

°C > Tc

≥ 100°C

100

°C > Tc

≥ 90°C

°C

> Tc

≥ 80°C

°C

> Tc

≥ 10°C

°C

> Tc

≥ 0°C

°C

> Tc

≥ -10°C

-10

°C > Tc

≥ -20°C

-20

°C > Tc

≥ -30°C

-30

°C > Tc

≥ -40°C

-40

°C > Tc

temp

1100b

1011b

1010b

1001b

1000b

0111b

0110b

0101b

0100b

0011b

0010b

0001b

0000b

Condition

High-alarm

High-warning

Normal

Low-warning

Low-alarm

M21050 Datasheet(PDF) 39 Page - M/A-COM Technology Solutions, Inc.

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