M820L Hybrid Codec PCI Express Card User's Manual
Rev. 1.3a
Nov. 22, 2019
4
Copyright 2018-2019 Socionext Inc.
5.
M820L Hardware Specification
5.1.
Main Specification
Table 5-1 shows the M820L main hardware specification.
Table 5-1: M820L main hardware specification
Main processor
CPU
ARM® Cortex®-A53 (Dual, 1GHz) x12
Memory
DDR4 SDRAM: 8 Gbytes
eMMC flash memory: 64 Gbytes
Interface
Ethernet
RJ-45 1000/100BASE-T
PCI Express
Gen2.0, 4 lanes card edge
USB
Micro USB 2.0 device (Dual UART)
Others
Power supply
12V (+/-8%)/2 A (provided from PCI Express card edge)
Size
179.49 mm x 79.2 mm x 20 mm (Low profile I/O bracket attached)
179.08 mm x 120.0 mm x 20 mm (Standard I/O bracket attached)
Weight
135 g (Low profile I/O bracket attached)
138 g (Standard I/O bracket attached)
Power consumption
24 W
Note:
Do not install M820L in the PC/server chassis with the power management by the PCI-PM software
compatible mechanisms enabled.
5.2.
Block Diagram
Figure 5-1 shows the M820L block diagram.
M820L
CPU
DDR4
8 Gbytes
SPI flash memory
GbE-PHY
Codec IC
PCIe
RGMII
Ca
rd
e
dg
e
PC
Ie
LAN
G
b
E
UART
to USB
USB
SPI flash
memory
LPDDR4
2 Gbytes
eMMC
LED
GPIO
Figure 5-1: M820L block diagram
