Cambricon Mlu290-m5 User manual

Cambricon®

MLU290-M5 Intelligent Accelerating

Card Product Manual

V0.2.0

Preliminary

Cambricon®

1. Preface..............................................................................................................................................................1

1.1. Copyright Declaration.........................................................................................................................1

1.2. Version .....................................................................................................................................................2

1.3. Update history.......................................................................................................................................2

2. Overview.......................................................................................................................................................... 3

3. Product Specification Overview...............................................................................................................4

3.1 Overview of Product Specification Parameters............................................................................4

3.2 Overview of structure specifications................................................................................................5

3.3 Overview of Power Supply Specifications......................................................................................5

3.4 Overview of heat dissipation specifications..................................................................................5

3.5 Overview of interface specifications................................................................................................6

4. Electrical specifications ...............................................................................................................................7

4.1 Connector pin description..................................................................................................................7

4.2 Power supply requirements ............................................................................................................ 10

4.3 Signal description ............................................................................................................................... 11

5. Heat dissipation specifications .............................................................................................................. 18

5.1 Heat dissipation instructions........................................................................................................... 18

5.2 Maximum operating temperature................................................................................................. 18

5.3 Slowdown temperature .................................................................................................................... 18

5.4 Shutdown temperature..................................................................................................................... 18

5.5 Air inlet temperature requirements.............................................................................................. 19

6. Cambricon NeuWare development environment .......................................................................... 20

7. Compliance.................................................................................................................................................. 21

Cambricon®

1. Preface

1.1. Copyright Declaration

Disclaimer

Cambricon Technologies Corporation Limited(hereinafter referred to as "Cambricon ") does not represent,

guarantee (express, implied or statutory) or guarantee the information contained in this document and expressly

waives any and all implied guarantees of saleability, ownership, non-aggression of intellectual property or

applicability for a specific purpose, and cambricon does not assume any liability arising from the application or

use of any product or service. cambricon shall not be liable for any breach of contract, damages, costs or

problems arising from :(1) any way of using cambricon products contrary to this Guide; or (2) customer product

design.

Limitation of liability

In no case shall Cambricon be liable for any damage caused by the use or inability to use this Guide

(including but not limited to damage such as loss of profits, business disruption and loss of information), even

if Cambricon has been advised that such damage may be suffered. Although the customer may suffer any

damage for any reason, according to the terms and conditions of sale of the products of the Cambricon, the

total and cumulative liability of Cambricon to the customer for the products described in this Guide shall be

limited.

Accuracy of information

The information provided in this document is owned by Cambricon and Cambricon reserves the right to

make any changes to this document information or to any products and services without notice. The information

contained in this guide and all other information of the Cambricon documents cited in this guide are provided

"as is ". Cambricon does not guarantee the accuracy or completeness of information, texts, patterns, links or

other items contained in this guide. Cambricon may make changes to this Guide or to the products described

in this Guide without notice, but does not undertake to update this Guide.

The performance tests and grades listed in this guide are to be measured using a specific chip or computer

system or component. After such tests, the results shown in this guide reflect the general performance of

Cambricon products. Any difference in system hardware or software design or configuration will affect actual

performance. As mentioned above, Cambricon does not represent, warrant or guarantee that the products

described in this Guide will apply for any particular purpose.Cambricon does not represent or guarantee testing

all parameters of each product.The customer is solely responsible for ensuring that the product is suitable and

applicable to the application of the customer plan and for performing the necessary tests on the application,

Cambricon®

with a view to avoiding the default of the application or product.

The fragility of customer product design can affect the quality and reliability of Cambricon products and

lead to additional or different circumstances and/or requirements beyond the scope of this guide.

Notice of Intellectual Property

The Cambricon and Cambricon symbols are trademarks and/or registered trademarks of Cambricon

Technologies Corporation Limited in the United States and other countries. Other companies and product

names shall be trademarks of the respective companies associated with them.

This guide is copyrighted and protected by the provisions of copyright laws and treaties worldwide.This

guide can not be reproduced, reworked, modified, published, uploaded, published, transmitted or distributed

in any way without the prior written permission of Cambricon. Except for the customer's right to use this guide

information and products, according to this guide, Cambricon does not grant any other express or implied

rights or permits. It is doubtful that the Cambricon does not grant any (express or implied) rights or permits

to the customer based on any patent, copyright, trademark, trade secret or any other Cambricon intellectual

property or ownership.

1.2. Version

1Table 1.1 Version Record

Document

name

MLU290-M5 Intelligent Accelerating Card

Product Manual

Version

number V0.2.0

Author Cambricon

Date created 2020.07.10

1.3. Update history

V0.2.0

Update time: 2020.07.10

Update:

-Initial version

Cambricon®

2. Overview

MLU290-M5 is the first high performance Intelligent Accelerating Card for cloud data center in

cambricon, which provides excellent performance and energy efficiency ratio. At the same time it supports

heavy tasks such as deep learning training, large-scale data analysis, artificial intelligence reasoning and

so on. MLU290-M5 supports cambricon adaptive precision training and provides up to 512 TOPs INT8

hashrate to align the data accuracy of training and reasoning business. MLU290-M5 provides inter-chip

high speed interconnection technology CCLINK, supports cross-system direct connection, which can build

large scale training clusters easily.The new vMLU function fully supports SRIOV, which can provide services

by multiple virtual instances to give full play to computing efficiency.

Cambricon®

3. Product Specification Overview

3.1 Overview of Product Specification Parameters

MLU290-M5 Intelligent Accelerating Card specification parameters are as follows:

1Table 3.1 MLU290-M5 Specification Parameters

Specification indicators

Note

Product model

MLU290-M5

Core architecture

Cambricon MLUv02

Core frequency

1GHz

Integer speed (INT8)

512TOPS (Dense)

Calculation accuracy support

INT16,INT8,INT4,FP32,FP16

Video decoding

Support

Memory capacity

32GB

Memory width

4096- bit

Memory bandwidth

1024GB/s

System interface

PCI Express 4.0x16, lane reversal supported

PCI identifier

PCIE Vendor ID 0xCABC

PCIE Device ID 0x0290

PCIE Sub-Vendor ID xCABC 0

PCIE Sub-System ID 0x0012

CCLINK interface

6Ports

CCLINK bandwidth

600GB /S

TDP power consumption

350W

ECC protection

Yes

Heat dissipation scheme

Passive

Cambricon®

3.2 Overview of structure specifications

MLU290-M5 Intelligent Accelerating Card structure specifications:

2Table 3.2 MLU290-M5 Structure Specification

Specification indicators

Note

Card shape

102 mm*165mm,OAM standard

Card Weight

1.47 Kg

Minimum chip pressure

30PSI

Maximum chip pressure

60PSI

Partner labelling area

16.1mm*40.2mm

3.3 Overview of Power Supply Specifications

MLU290-M5 Intelligent Accelerating Card power specifications:

3Table 3.3 MLU290-M5 Power Supply Specifications

Specification indicators

Note

Input voltage

DC54V±5%，6.48 A±5%

Electrical data peak processing

(EDPp)

1.6X TDP ≤2ms

1.5X TDP ≤5ms

1.2X TDP ≤10ms

1.1X TDP ≤20ms

3.4 Overview of heat dissipation specifications

MLU290-M5 Intelligent Accelerating Card heat dissipation specifications:

4Table 3.4 MLU290-M5 Heat dissipation Specifications

Specification indicators

Note

MLU maximum operating

temperature (Tj) 95℃

MLU slowdown temperature (Tj)

97℃

MLU shutdown temperature (Tj)

100℃

MLU power reduction ratio

1/2 to 1/8

Cambricon®

3.5 Overview of interface specifications

MLU290-M5 Intelligent Accelerating Card interface specifications:

5Table 3.5 MLU290-M5 Interface Specification

Interface

Note

PCIE Base address

PF (1,64 bit):

BAR0：256MB prefetchable

BAR2：256MB prefetchable

BAR4：256MB prefetchable

VF (4,64 bit):

BAR0：256MB prefetchable

BAR2：256MB prefetchable

BAR4：256MB prefetchable

SMBus (8bit address)

0 x8E (Write) 0x8F (Read)

Cambricon®

4. Electrical specifications

4.1 Connector pin description

MLU290-M5 Intelligent Accelerating Card using two 688-pin Molex Mirror Mezz snap connectors.The

design impedance of the connector is 90Ω±5%, which can be compatible with both 85Ωand 100Ω

protocols. The signal and power are connected to the main board through this connector, and the

connector pin area is divided as follows:

1Figure 4.1 Connector pin area division

The connector pins are shown in the following table:

1Table 4.1 MLU290-M5 connector arrangement of pin 0

Signal

Direction of

signal Signal description Voltage

PWR_54V I MLU290-M5 power input pin which support

40V-60V power supply 40V-60V

PVREF[1:0] O MLU290-M5 JTAG interface, I/O signal and

voltage indication signal ,1.8 V. 1.8V

PETp/n [15:0] O PCIE signal sending. MLU290-M5 send,

baseboard receive.Make sure that AC /

Cambricon®

coupling capacitor is placed near the fastener

connector of the baseboard. The

recommended capacitance value is 220 nF

PERp/n [15:0] I

PCIE signal receiving. MLU290-M5 receive,

baseboard send. Make sure that AC coupling

capacitor is placed near the sending chip or

fastener connector of the baseboard. The

recommended capacitance value is 220 nF

PE_REFCLKp/n I PCIE 100MHz reference clock /

PERST# I MLU290-M5 reset signal, low level effective 3.3V

HOST_PWRGD

Baseboard power good indication signal

3.3V

MODULE_PWRGD O MLU290-M5 power good indication signal 3.3V

PWRBRK# I Power brake, reduce to 1/4 of current power

consumption, low level effective 3.3V

MODULE_ID[4:0] I MLU290-M5 slot ID. MLU290-M5 internal

default 10KΩpull-up resistor 3.3V

I2C_SLV_D I/O I2C data signal, MLU290-M5 works in slave

mode 3.3V

I2C_SLV_CLK I I2C clock signal, MLU290-M5 working in

slave mode 3.3V

I2C_SLV_ALERT# O I2C alarm signal, MLU290-M5 works in slave

mode 3.3V

UART_TXD O MLU290-M5 MCU UART serial port output 3.3V

UART_RXD I MLU290-M5 MCU UART serial port input 3.3V

JTAG0_TRST I MLU290-M5 JTAG0 TRST reset signal 1.8V

JTAG0_TMS I

MLU290-M5 JTAG0 TMS mode selection

signal 1.8V

JTAG0_TCK I MLU290-M5 JTAG0 TCK clock signal 1.8V

JTAG0_TDO O MLU290-M5 JTAG0 TDO data output signal 1.8V

JTAG0_TDI I MLU290-M5 JTAG0 TDI data input signal 1.8V

PRSNT0# O

MLU290-M5 fastener connector 0 in position

signal, MLU290-M5 default 1KΩpull-down

resistor. Recommend 10KΩpull-up resistor

on baseboard.

1.8V or

3.3V

MANF_MODE# I Undefined functions 3.3V

FW_RECOVERY# I Undefined functions 3.3V

TEST_MODE# I Test mode. NC is acceptable

1.8V or

3.3V

RFU / Reserved pin /

2Table 4.2 MLU290-M5 connector arrangement of pin 1

Signal

Direction of

signal Signal description

Voltage

voltage

Cambricon®

SERDES_4Tp/n [15:0] O CCLINK4[15:0] transmit signal /

SERDES_4Rp/n [15:0] I CCLINK4[15:0] receiving signal /

SERDES_5Tp/n [7:0] O CCLINK5[7:0] transmit signal /

SERDES_5Rp/n [7:0] I CCLINK5[7:0] receiving signal /

SERDES_6Tp/n [15:0] O CCLINK6[15:0] transmit signal /

SERDES_6Rp/n [15:0] I CCLINK6[15:0] receiving signal /

SERDES_7Tp/n [15:8] O CCLINK7[15:8] transmit signal /

SERDES_7Rp/n [15:8] I CCLINK7[15:8] receiving signal /

AUX_156M_REFCLKp/n I CClink 156.25MHz reference clock /

PWRRDT#[1:0] I

TDP power setting pin, 3.3V pull-up is

provided by the baseboard.

11：L0 level, normal TDP power

consumption 350 W default.

10：L0 level,TDP power consumption

reduced to 300 W.

01:L2 level,TDP power consumption

reduced to 250 W.

00:L3 level,TDP power consumption

reduced to 200 W.

3.3V

THERMTRIP# O

MLU290-M5 over-temperature alarm,

which will trigger MLU290-M5

automatically shut down, please check the

chassis fault (such as fan fault) and then

restart the device, low level effective

3.3V

LINK_CONFIG[4:0] I

Serdes link configuration topology,

MLU290-M5 internal default 10 K pull-up 3.3V

PE_BIF[1:0] O

Indication of PCIE interface bit width :

MLU290-M5 default 00

00-1 x16( default)

01-2 x8

00-4 x4

00- Reserved

3.3V or

1.8V

PLINK_CAP O

Support of PCIE port protocol : MLU290-

M5 default 0

0= Only support PCIE protocol(default)

1= Support other protocols, reserved

3.3V or

1.8V

PRSNT1# O

MLU290-M5 fastener connector 1 in

position, MLU290-M5 default 1KΩpull-

down resistor . Recommend 10KΩpull-up

resistor on baseboard.

3.3V or

1.8V

SCALE_DEBUG_EN O Undefined functions 3.3V

DEBUG_PORT_PRSNT# I Baseboard debug port in position

indication signal. NC is acceptable. 1.8V

RFU / Reserved pin

Cambricon®

Note:connector signal pin list and pin map see attached document.

4.2 Power supply requirements

4.2.1 Input power supply

MLU290-M5 Intelligent Accelerating Card input power requirements:

3Table 4.3 MLU290-M5 Input Power Specification

Input voltage

Input Current

54V±5%

6.48 A±5%

Note:

1.The voltage value shall be the test value at the connector;

2.If the input voltage is low, the current value needs to be raised to meet TDP 350W specification;

4.2.2 Peak current of power supply

MLU290-M5 Intelligent Accelerating Card is able to reduce power consumption adjustment for

transient power changes above the µs level. the power regulator can support power fluctuations within

the ms level (e.g .1.2 x TDP).

4 Table 4.4 MLU290-M5 EDPp Specification

EDP

Duration

1.6*TDP

≤2 ms

1.5*TDP

≤5 ms

1.2*TDP

≤10 ms

1.1*TDP

≤20 ms

4.2.3 HSC protection circuit

MLU290-M5 Intelligent Accelerating Card input voltage is DC 54V.Hot Swap Controllers (HSC) is

required on the baseboard to provide slow start, short circuit protection and over-current/voltage

protection for MLU290-M5. It is recommended to provide a separate HSC for each MLU290-M5. The

transient power consumption need to support more than 2 ms within 1.6 *TDP.The block diagram of

HSC is as follows:

Cambricon®

54VDC In Fuse

20 Amp

Littlfuse 456

Hot Swap

Mosfet

Hot Swap

Ckt

MezzCard

0.1uF TVS 47uF

Qty=6

10uF

Qty=10

GND

2Figure 4.2 HSC block diagram

LM5069 and LM5066I of TI are recommended by the HSC controller.The selection of MOS should

focus on SOA curve. Infineon IPB017N10N5LF and Nexperia PSMN4R8-100BSE are recommended.

4.2.4 Power on time sequence

When MLU290-M5 Intelligent Accelerating Card power on normally with DC 54V voltage,the

HOST_PWRGD signal is sent out after the reference clock (156.25MHz) is stable.Detailed timing

sequence is as follows:

54V

HOST_PWRGD

AUX_156M_REFCLK

<4s

>100ms

3Figure 4.3 Power on Timing Sequence

4.3 Signal description

4.3.1 Clock signal

AUX_156M_REFCLKp/n receiving support LVPECL,LVDS,CML,HCSL and other common differential

level signal input.As a CCLINK high-speed SERDES reference clock, its phase noise jitter is required less

than 270fs.

5 Table 4.5 AUX_156M_REFCLK Specifications

Parameters

Conditions

Minimum

value

Typical

values

Maximum

value

Units

Cambricon®

Frequency -- 100 156.25 400 MHz

Frequency offset -- -100 -- 100 PPM

Maximum voltage value -- -- -- 3.3 V

Minimum voltage value -- GND -- -- V

Differential swing -- 0.15 -- 1.3 V

Duty cycle -- 45 50 55 %

Phase noise jitter 12KHz –20MHz -- -- 270 fs RMS

4.3.2 PCIE signal

MLU290-M5 Intelligent Accelerating Card supports PCIE GEN4.0 x16 bit width default.There is no

AC coupling capacitor in MLU290-M5. Sending and receiving AC coupling capacitors are placed on the

baseboard and the value range is 176nF-265nF (220nF recommended). The placement position

reference diagram is as follows:

Mirror Mezz

connector MLU290

CPU/Switch

MezzCradBaseBorad

220nF

4Figure 4.4 PCIE AC Coupled Capacitance

PE_REFCLK reference clock shall meet the requirements of PCIE GEN4.0 specification, phase noise

jitter should be less than 0.5 ps.

6Table 4.6 PE_REFCLK Specifications

Signal

Direction of signal

Signal description

PETp/n [15:0] O

PCIE sending signal. MLU290-M5 send,

baseboard receive.

PERp/n [15:0] I PCIE receiving signal. MLU290-M5 receive,

baseboard send.

Cambricon®

PE_REFCLKp/n

PCIE 100MHz reference clock

4.3.3 CCLINK signal

CCLINK is an internal connection link between MLU290-M5 Intelligent Accelerating Cards.The

maximum transmission rate of CCLINK can be 50 Gbps PAM4, which is compatible with OAM specifications.

SERDE _[3：1]R/T[15:0],SERDE _5R/T[15:8] and SERDE _7R/T[7:0] are not used in MLU290-M5. The 48 pairs

of serdes in the table below are used，which are compatible with combine topology. For detailed internal

connection topology please refer to the reference topology chapter.

7Table 4.7 CCLINK Signal description

Signal

Direction of signal

Signal description

SERDES_4Tp/n [15:0]

CCLINK4[15:0] transmit signal

SERDES_4Rp/n [15:0] I CCLINK4[15:0] receiving signal

SERDES_5Tp/n [7:0] O CCLINK5[7:0] transmit signal

SERDES_5Rp/n [7:0]

CCLINK5[7:0] receiving signal

SERDES_6Tp/n [15:0]

CCLINK6[15:0] transmit signal

SERDES_6Rp/n [15:0]

CCLINK6[15:0] receiving signal

SERDES_7Tp/n [15:8]

CCLINK7[15:8] transmit signal

SERDES_7Rp/n [15:8]

CCLINK7[15:8] receiving signal

4.3.4 Other signals

4.3.4.1 SMBUS signal

I2C_SLV_D /CLK/ALERT# satisfy the SMBus protocol and supports 400KHz max, with 8 bit addresses

of 0x8E( write)/0x8F( read). MLU290-M5 works in slave mode.

8Table 4.8 SMBUS Signal description

Signal

Direction of signal

Signal description

I2C_SLV_D

I/O

I2C data signal

I2C_SLV_CLK

I2C clock signal

I2C_SLV_ALERT#

I2C alarm signal

SMBUS registers are described as follows:

Cambricon®

9Table 4.9 SMBUS Register description

Reading

and

writing

Note

Card power consumption 0x01 RO Power consumption, float, unit W

Card Temperature 0x02 RO Card temperature,float, unit ℃

Chip temperature 0x03 RO Chip temperature,float, unit ℃

power brake 0x05 WO Main frequency reduce to 25% of current

value when write 0x04, and recover to

the frequency

before reducing when

write 0x01.

PCIE Vendor ID and Device ID 0xA0 RO [15:0] Vendor ID ：0xCABC

[31:16] Device ID ：0x0290

PCIE Sub-

Vendor ID and

Sub-System ID

0xA1 RO [15:0] Sub-Vendor ID ：0xCABC

[31:16] Sub-System ID ：0x0042

PCIE _negotiated_speed

0xA2

Display PCIE negotiation rate, e.g .0 x 04

indicate gen4 16GT/s

PCIE_negotiated_link_width 0xA3 R O Display PCIE

negotiation width, e.g .0

x16 means X16.

Type of card 0xF0 RO Display card type

Manufacturer 0xF1 RO Display equipment manufacturer

number

Hardware version number 0xF2 RO Display hardware version number

Firmware version number 0xF3 RO

Show firmware version number, e.g .0

x04420100 mean

s master chip version

number 0x04, card type 0x42，master

version number 0x01,

sub version

number 0x0 and patch number 0x0.

Manufacturing time 0xF4 RO Display manufacturing time

, e.g .0

x2006 means manufactured

in June

2020

Serial number 0xF5 RO Display the serial number of the device,

e.g .0 x30001 indicating a serial number

of 30001

Cambricon®

4.3.4.2 THERMTRIP# overtemperature alarm signal

THERMTRIP# is triggered when MLU290-M5 chip junction temperature is over 100℃, which is

irreversible after effective. It is recommended to trigger fan full speed when the chip temperature of

MLU290-M5 is below 93℃, trigger power drop to 1/2 when chip temperature rises to 97℃, trigger

power drop to 1/4 when chip temperature rises to 98℃, trigger power drop to 1/8 when chip

temperature rises to 99℃.If the chip temperature rises to 100℃, which means the power reduction

measures fail, the system may have fan failure or other catastrophic failures. At this time MLU290-M5

will pull down the THERMTRIP# signal to alarm baseboard management system. MLU290-M5 will

automatically cut off the power supply for shutdown protection after 1s.

THERMTRIP# signal will continue to be low after effective. It is recommended to confirm manually

on site, and restart the system after troubleshooting.

4.3.4.3 Power Configuration Signal

MLU290-M5 Intelligent Accelerating Card provides two power configuration pins:PWRBRK#

and PWRRDT#[1：0].PWRBRK# is based on the current power consumption and responses

fast.When low-level is effective,it is reduced to 1/4 of the current power

consumption.PWRRDT#[1：0] is a hardware implementation mode of power capping, which can

set 4 types of TDP power consumption: 350 W, 300W, 250W, 200. It is recommended that the

baseboard should be pulled up to 3.3V by default to obtain better performance.

The MLU290-M5 Intelligent Accelerating Card also supports setting the upper limit of TDP

power consumption by sending power capping instructions through the I2C interface, and the

setting range is 175 W-350W.

10Table 4.10 Power Configuration Signal Description

Signal

Direction of signal

Signal description

PWRBRK# I

Power brake,power is reduced to 1/4 of current

power consumption, low level is effective

PWRRDT#[1:0] I

TDP power setting pin, baseboard must

provide default 3.3 V high level

11 - L0 level, normal TDP power consumption

350 W, default

10 - L1 level,TDP power consumption reduced

to 300 W

01 - L2 level,TDP power consumption reduced

to 250 W

00 - L3 level,TDP power consumption reduced

to 200 W

Cambricon®

4.3.4.4 Other configuration signals

11Table 4.11 Other configuration signals descriptions

Signal

Direction of signal

Signal description

MODULE_ID[4:0] I

MLU290-M5 slot ID. MLU290-M5 internal

default 10 K pull up

LINK_CONFIG[4:0] I

Serdes link configuration topology, MLU290-

M5 internal default 10 K pull up

PE_BIF[1:0] O

PCIE interface bit width indication: MLU290-M5

default 00

00-1 x16( default)

01-2 x8

00-4 x4

00- Reserved

PLINK_CAP O

Support of PCIE port protocol

: MLU290-M5

default value is 0

0= Only support PCIE protocol (default)

1= Support other agreements , reserved

4.3.4.5 Reserved signals

The following signals are defined in OAM protocol, but not used in MLU290-M5,which are

recommended to NC.

12Table 4.12 Reserved signal description

Signal

Direction of

signal Signal description

SCALE_DEBUG_EN O Undefined functions

DEBUG_PORT_PRSNT# I Baseboard debug port in position indicator

signal. NC

MANF_MODE# I

Undefined functions

FW_RECOVERY# I

Undefined functions

Cambricon®

TEST_MODE# I

Test mode. NC

RFU / Reserved pin

NC / Suspension pin

Cambricon®

5. Heat dissipation specifications

5.1 Heat dissipation instructions

MLU290-M5 Intelligent Accelerating Card adopts passive heat dissipation mode.

5.2 Maximum operating temperature

Maximum operating temperature means the recommended maximum operating temperature

(junction temperature Tj) of MLU290-M5. Junction temperature is obtained through the chip built-in

temperature sensor at the software interface through instructions. It is recommended to control the

maximum operating temperature of the main chip of MLU290-M5 below 95℃.

5.3 Slowdown temperature

Slowdown temperature means the temperature point which the IPU frequency is reduced.The

slowdown temperature of MLU290-M5 is 97℃.

5.4 Shutdown temperature

Shutdown temperature means the temperature point which the power is cut off. The shutdown

temperature should not be triggered during normal operation, and the system may have a catastrophic

damage when the shutdown temperature is triggered. The shutdown temperature of MLU290-M5 is

100℃.

When the chip junction temperature of MLU290-M5 reaches 100℃, the THERMTRIP# signal

will be triggered and the power supply of MLU290-M5 will be cut off after 1s. After the power is cut

off, it is recommended to eliminate the heat dissipation problem manually before restart.

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