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Update about_rp1.adoc #3242

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Oct 26, 2023
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Update about_rp1.adoc #3242

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9 changes: 4 additions & 5 deletions documentation/asciidoc/microcontrollers/rp1/about_rp1.adoc
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Expand Up @@ -4,7 +4,7 @@
.Architecture
image::images/rp1.jpg[alt="Architecture diagram of the RP1",width="70%"]

RP1 is a 12×12mm, 0.65mm-pitch BGA southbridge, which provides the majority of the I/O capabilities for xref:../computers/raspberry-pi-5.adoc[Raspberry Pi 5]. Access to peripherals from BCM2712 is done via the RP1 on Raspberry Pi 5.
RP1 is a 12×12mm, 0.65mm-pitch BGA southbridge, which provides the majority of the I/O capabilities for xref:../computers/raspberry-pi-5.adoc[Raspberry Pi 5].

video::aioB40BGQYU[youtube]

Expand All @@ -14,10 +14,9 @@ It provides:
* Gigabit Ethernet MAC
* 2× USB 3 host controllers
** Each has 1× USB 3 and 1× USB 2 port
** Each has 1× USB 3 and 1× USB 2 port
** More than 2× usable USB BW vs Raspberry Pi 4
* 2 × SDIO ports/eMMC (not used on Raspberry Pi 5)
* MIPI transceivers (4-lane, supporting DSI and CSI-2)
** More than twice the usable USB bandwidth vs. Raspberry Pi 4
* 2× SDIO ports/eMMC (not used on Raspberry Pi 5)
* 2× MIPI transceivers (4-lane, supporting DSI and CSI-2)
* Video DAC (3-channel, supporting PAL/NTSC and VGA)
** Only one channel (composite) used on Raspberry Pi 5
* Low-speed peripherals (SPI, UART, I2C, PWM, GPIO, I2S)
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