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2 changes: 2 additions & 0 deletions documentation/asciidoc/computers/processors/bcm2836.adoc
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Expand Up @@ -6,3 +6,5 @@ You should refer to:

* https://datasheets.raspberrypi.com/bcm2836/bcm2836-peripherals.pdf[BCM2836 ARM-local peripherals]
* https://developer.arm.com/documentation/ddi0464/f/[Cortex-A7 MPcore Processor Reference Manual]

IMPORTANT: This SoC is discontinued. Raspberry Pi devices that include this chip reached End-of-Life on 16 October 2025. For more information, see https://pip.raspberrypi.com/documents/RP-009284-PC-2?disposition=inline[Raspberry Pi 2 Model B revisions 1.1 and 1.2 Obsolescence Notice 1].
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It's the BCM2837 that became EoL on 16 October 2025, the BCM2836 became EoL much earlier. See https://pip-assets.raspberrypi.com/documents/RP-004577-PC-1

4 changes: 3 additions & 1 deletion documentation/asciidoc/computers/processors/bcm2837.adoc
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== BCM2837

This is the Broadcom chip used in the Raspberry Pi 3 Model B, later models of the Raspberry Pi 2 Model B, and the Raspberry Pi Compute Module 3. The underlying architecture of the BCM2837 is identical to the BCM2836. The only significant difference is the replacement of the Armv7 quad core cluster with a quad-core Arm Cortex A53 (Armv8) cluster.
This is the Broadcom chip used in Raspberry Pi 3 Model B, some models of Raspberry Pi 2 Model B, Raspberry Pi Compute Module 3, and Raspberry Pi Compute Module 3 Lite. The underlying architecture of the BCM2837 is identical to the BCM2836. The only significant difference is the replacement of the Armv7 quad core cluster with a quad-core Arm Cortex A53 (Armv8) cluster.
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"Raspberry Pi Compute Module 3, and Raspberry Pi Compute Module 3 Lite" - I'm not sure if we need to differentiate between these here? The CM3L is just a CM3 without an eMMC chip soldered to it.


The Arm cores run at 1.2GHz, making the device about 50% faster than the Raspberry Pi 2. The VideoCore IV runs at 400MHz.

Please refer to the following BCM2836 document for details on the Arm peripherals specification, which also applies to the BCM2837.

* https://datasheets.raspberrypi.com/bcm2836/bcm2836-peripherals.pdf[BCM2836 Arm-local peripherals]
* https://developer.arm.com/documentation/ddi0500/latest/[Cortex-A53 MPCore Processor Technical Reference Manual]

IMPORTANT: This SoC is discontinued. Raspberry Pi devices that include this chip reached End-of-Life on 16 October 2025. For more information, see https://pip.raspberrypi.com/documents/RP-009284-PC-2?disposition=inline[Raspberry Pi 2 Model B revisions 1.1 and 1.2 Obsolescence Notice 1] and https://pip.raspberrypi.com/documents/RP-009286-PC?disposition=inline[Raspberry Pi Compute Module 3 and Compute Module 3 Lite Obsolescence Notice 2].
2 changes: 1 addition & 1 deletion documentation/asciidoc/computers/processors/bcm2837b0.adoc
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== BCM2837B0

This is the Broadcom chip used in the Raspberry Pi 3 Models A+, B+, and the Raspberry Pi Compute Module 3+. The underlying architecture of the BCM2837B0 is identical to the BCM2837 chip used in other versions of the Raspberry Pi. The Arm core hardware is the same, only the frequency is rated higher.
This is the Broadcom chip used in the later models of the Raspberry Pi 2 Model B, Raspberry Pi 3 Models A+, B+, and the Raspberry Pi Compute Module 3+. The underlying architecture of the BCM2837B0 is identical to the BCM2837 chip used in other versions of the Raspberry Pi. The Arm core hardware is the same, only the frequency is rated higher.
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This is the Broadcom chip used in the later models of the Raspberry Pi 2 Model B, Raspberry Pi 3 Models A+, B+, and the Raspberry Pi Compute Module 3+. The underlying architecture of the BCM2837B0 is identical to the BCM2837 chip used in other versions of the Raspberry Pi. The Arm core hardware is the same, only the frequency is rated higher.
This is the Broadcom chip used in the later models of Raspberry Pi 2 Model B, Raspberry Pi 3 Models A+, B+, and Raspberry Pi Compute Module 3+. The underlying architecture of the BCM2837B0 is identical to the BCM2837 chip used in other versions of the Raspberry Pi. The Arm core hardware is the same, only the frequency is rated higher.


The Arm cores are capable of running at up to 1.4GHz, making the 3B+/3A+ about 17% faster than the original Raspberry Pi 3. The VideoCore IV runs at 400MHz. The Arm core is 64-bit, while the VideoCore IV is 32-bit.
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Probably not worth mentioning that Raspberry Pi Compute Module 3+ and Raspberry Pi 2 Model B rev 1.3 only run the Arm cores at up to 1.2 GHz?


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14 changes: 10 additions & 4 deletions documentation/asciidoc/computers/raspberry-pi/introduction.adoc
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Expand Up @@ -14,7 +14,9 @@ Raspberry Pi makes computers in several different **series**:
*Model B* indicates the presence of an Ethernet port.
*Model A* indicates a lower-cost model in a smaller form factor with no Ethernet port, reduced RAM, and fewer USB ports to limit board height.

[cols="6a,2,2,3,5"]
IMPORTANT: Raspberry Pi 2 Model B revisions 1.1 and 1.2 have reached End-of-Life (EoL) due to the discontinuation of the core SoC used in these products. The official EoL date was 16 October 2025. Raspberry Pi 2 Model B revision 1.3 offers the same mechanical footprint and a BCM2837B0 processor, and so is recommended for existing designs. For more information, see the official https://pip.raspberrypi.com/documents/RP-009284-PC-2?disposition=inline[Obsolescence Notice].
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I think that @mudge told me that you can leave off the ?disposition=inline as long as the URL starts with /documents/... ?


[cols="6a,3,2,3,5"]
|===
| Model | SoC | Memory | GPIO | Connectivity

Expand Down Expand Up @@ -81,7 +83,11 @@ a|
^.^a|
.Raspberry Pi 2 Model B
image::images/2-model-b.jpg[alt="Raspberry Pi 2 Model B"]
| xref:processors.adoc#bcm2836[BCM2836] (in version 1.2, switched to xref:processors.adoc#bcm2837[BCM2837]) | 1 GB | 40-pin GPIO header
a|
* revision 1.1: xref:processors.adoc#bcm2836[BCM2836]
* revision 1.2: xref:processors.adoc#bcm2837[BCM2837A]
* revision 1.3: xref:processors.adoc#bcm2837b0[BCM2837B0]
^.^a| 1 GB | 40-pin GPIO header
a|
* HDMI
* 4 × USB 2.0
Expand Down Expand Up @@ -109,7 +115,7 @@ a|
^.^a|
.Raspberry Pi 3 Model B+
image::images/3-model-b-plus.jpg[alt="Raspberry Pi 3 Model B+"]
| xref:processors.adoc#bcm2837b0[BCM2837b0] | 1 GB | 40-pin GPIO header
| xref:processors.adoc#bcm2837b0[BCM2837B0] | 1 GB | 40-pin GPIO header
a|
* HDMI
* 4 × USB 2.0
Expand All @@ -124,7 +130,7 @@ a|
^.^a|
.Raspberry Pi 3 Model A+
image::images/3-model-a-plus.jpg[alt="Raspberry Pi 3 Model A+"]
| xref:processors.adoc#bcm2837b0[BCM2837b0] | 512 MB | 40-pin GPIO header
| xref:processors.adoc#bcm2837b0[BCM2837B0] | 512 MB | 40-pin GPIO header
a|
* HDMI
* USB 2.0
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