Product Manual

Cambricon®
Copyright © 2020 Cambricon Corporation
9
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 1KΩ pull-
down resistor . Recommend 10KΩ pull-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