Editing ampere computing/emag/8180

{{ampere title|eMAG}}
{{chip
|name=eMAG
|image=emag (front).jpg
|designer=Ampere Computing
|manufacturer=TSMC
|model number=eMAG
|market=Server
|first announced=February 5, 2018
|first launched=September 8, 2018
|release price=$950
|frequency=3,000 MHz
|turbo frequency=3,300 MHz
|isa=ARMv8
|isa family=ARM
|microarch=Skylark
|process=16 nm
|technology=CMOS
|word size=64 bit
|core count=32
|thread count=32
|max cpus=1
|max memory=1 TiB
|v core=0.85 V
|v io=1.8
|v io 2=3.3
|tdp=125 W
|tjunc min=0 °C
|tjunc max=90 °C
|package module 1={{packages/ampere_computing/fcbga-3211}}
}}
'''eMAG''' is a {{arch|64}} [[32-core]] [[ARM]] server microprocessor introduced by [[ampere computing|Ampere]] in [[2018]]. Fabricated on [[TSMC]]'s [[16 nm process|16FF+]] based on the {{apm|Skylark|l=arch}} microarchitecture, this processor operates at 3 GHz with a turbo frequency of up to 3.3 GHz and 125 W TDP. This processor supports up to 8 channels of DDR4-2666 ECC memory.


{{unknown features}}


== Cache ==
{{main|apm/microarchitectures/skylark#Memory_Hierarchy|l1=Skylark § Cache}}
{{cache size
|l1 cache=2 MiB
|l1i cache=1 MiB
|l1i break=32x32 KiB
|l1d cache=1 MiB
|l1d break=32x32 KiB
|l1d policy=write-through
|l2 cache=4 MiB
|l2 break=16x256 KiB
|l3 cache=32 MiB
|l3 break=1x32 MiB
}}

== Memory controller ==
{{memory controller
|type=DDR4-2666
|type 2=DDR4-2400
|ecc=Yes
|max mem=1 TiB
|controllers=8
|channels=8
|max bandwidth=158.95 GiB/s
|bandwidth schan=19.89 GiB/s
|bandwidth dchan=39.72 GiB/s
|bandwidth qchan=79.47 GiB/s
|bandwidth ochan=158.95 GiB/s
|bandwidth hchan=119.21 GiB/s
}}

== Expansions ==
{{expansions main
|
{{expansions entry
|type=PCIe
|pcie revision=3.0
|pcie lanes=42
|pcie config=x16
|pcie config 2=x8
|pcie config 3=x4
}}
{{expansions entry
|type=USB
|usb revision=2.0
|usb ports=2
}}
{{expansions entry
|type=SATA
|sata revision=3
|sata ports=4
}}
}}

== Features == 
[[ampere a1.png|thumb|right]]
{{arm features
|thumb=No
|thumb2=No
|thumbee=No
|vfpv1=No
|vfpv2=No
|vfpv3=No
|vfpv3-d16=No
|vfpv3-f16=No
|vfpv4=No
|vfpv4-d16=No
|vfpv5=No
|neon=Yes
|trustzone=Yes
|jazelle=No
|wmmx=No
|wmmx2=No
|pmuv3=No
|crc32=No
|crypto=Yes
|fp=Yes
|fp16=No
|profile=No
|ras=No
|simd=No
|rdm=No
}}

== Block Diagram ==
[[File:ampere a1 block diagram.png|750px]]
Has subobject "Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.	eMAG 8180 - Ampere#package + and eMAG 8180 - Ampere#pcie +
base frequency	3,000 MHz (3 GHz, 3,000,000 kHz) +
core count	32 +
core voltage	0.85 V (8.5 dV, 85 cV, 850 mV) +
designer	Ampere Computing +
family	eMAG +
first announced	February 5, 2018 +
first launched	September 8, 2018 +
full page name	ampere computing/emag/8180 +
has ecc memory support	true +
instance of	microprocessor +
io voltage	1.8 V (18 dV, 180 cV, 1,800 mV) + and 3.3 V (33 dV, 330 cV, 3,300 mV) +
isa	ARMv8 +
isa family	ARM +
l1$ size	2,048 KiB (2,097,152 B, 2 MiB) +
l1d$ size	1,024 KiB (1,048,576 B, 1 MiB) +
l1i$ size	1,024 KiB (1,048,576 B, 1 MiB) +
l2$ size	4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +
l3$ size	32 MiB (32,768 KiB, 33,554,432 B, 0.0313 GiB) +
ldate	September 8, 2018 +
main image	+
manufacturer	TSMC +
market segment	Server +
max cpu count	1 +
max junction temperature	363.15 K (90 °C, 194 °F, 653.67 °R) +
max memory	1,048,576 MiB (1,073,741,824 KiB, 1,099,511,627,776 B, 1,024 GiB, 1 TiB) +
max memory bandwidth	158.95 GiB/s (162,764.8 MiB/s, 170.671 GB/s, 170,671.263 MB/s, 0.155 TiB/s, 0.171 TB/s) +
max memory channels	8 +
max sata ports	4 +
max usb ports	2 +
microarchitecture	Skylark +
min junction temperature	273.15 K (0 °C, 32 °F, 491.67 °R) +
model number	8180 +
name	eMAG 8180 +
package	FCBGA-3211 +
process	16 nm (0.016 μm, 1.6e-5 mm) +
release price	$ 850.00 (€ 765.00, £ 688.50, ¥ 87,830.50) +
series	eMAG 1 +
smp max ways	1 +
supported memory type	DDR4-2666 + and DDR4-2400 +
tdp	125 W (125,000 mW, 0.168 hp, 0.125 kW) +
technology	CMOS +
thread count	32 +
turbo frequency	3,300 MHz (3.3 GHz, 3,300,000 kHz) +
word size	64 bit (8 octets, 16 nibbles) +