From b8d3bb4936242b14207801658525920cc912240d Mon Sep 17 00:00:00 2001
From: dp111 <19616418+dp111@users.noreply.github.com>
Date: Fri, 17 Oct 2025 15:03:32 +0100
Subject: [PATCH] Revise Compute Module 4S specifications

Updated interface descriptions and corrected GPIO pin count.
---
 .../asciidoc/computers/compute-module/introduction.adoc     | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/documentation/asciidoc/computers/compute-module/introduction.adoc b/documentation/asciidoc/computers/compute-module/introduction.adoc
index aa74d7bd5..b8ad6b6d4 100644
--- a/documentation/asciidoc/computers/compute-module/introduction.adoc
+++ b/documentation/asciidoc/computers/compute-module/introduction.adoc
@@ -33,8 +33,6 @@ Unlike CM1, CM3, and CM3+, CM4 does not use the DDR2 SO-DIMM form factor. Instea
 * PCIe
 * Ethernet
 
-The previous form factor could not have supported these interfaces.
-
 === Compute Module 4S
 
 .Compute Module 4S
@@ -96,7 +94,7 @@ Compute Module 5 IO Board provides the following interfaces:
 * M.2 M key PCIe socket compatible with the 2230, 2242, 2260, and 2280 form factors
 * microSD card slot (only for use with Lite variants with no eMMC; other variants ignore the slot)
 * 2× MIPI DSI/CSI-2 combined display/camera FPC connectors (22-pin 0.5 mm pitch cable)
-* Real-time clock with battery socket
+* Battery socket for Real Time Clock
 * four-pin JST-SH PWM fan connector
 * USB-C power using the same standard as Raspberry Pi 5 (5V, 5A (25W) or 5V, 3A (15W) with a 600mA peripheral limit)
 * Jumpers to disable features such as eMMC boot, EEPROM write, and the USB OTG connection
@@ -127,7 +125,7 @@ image::images/cmio.jpg[alt="Compute Module IO Board", width="60%"]
 
 Compute Module IO Board provides the following interfaces:
 
-* 120 GPIO pins
+* 46 GPIO pins
 * HDMI port
 * USB-A port
 * 2× MIPI DSI display FPC connectors (22-pin 0.5 mm pitch cable)