From 210d9df1e43a06c62289952a4085058c3ad70d2a Mon Sep 17 00:00:00 2001 From: Kyle Cardoza Date: Fri, 22 Mar 2024 20:46:28 -0400 Subject: [PATCH] Work on fleshing out sections --- Audio & Video.md | 6 ++++++ Clock Port.md | 2 ++ Controller Ports.md | 4 ++++ 3 files changed, 12 insertions(+) diff --git a/Audio & Video.md b/Audio & Video.md index 801695c..6396eda 100644 --- a/Audio & Video.md +++ b/Audio & Video.md @@ -4,3 +4,9 @@ include_toc: true --- # Audio & Video + +## VERA Video + +## VERA Audio + +## The Sentinel 65X A/V Port diff --git a/Clock Port.md b/Clock Port.md index 07be254..bc5670a 100644 --- a/Clock Port.md +++ b/Clock Port.md @@ -4,3 +4,5 @@ include_toc: true --- # Clock Port + +The Sentinel 65X clock port is a small, 28-pin female pin header on the mainboard, which exposes the system's debug serial line, I2C bus, reset and main interrupt lines, `PHI2` clock signal, and a 64-address memory-mapped I/O region, mapped to memory beginning at `0x00DFC0`. This region of uncommitted expansion is reserved for the use of user-installed clock port accessories. diff --git a/Controller Ports.md b/Controller Ports.md index 5e9494c..69371f6 100644 --- a/Controller Ports.md +++ b/Controller Ports.md @@ -4,3 +4,7 @@ include_toc: true --- # Controller Ports + +Sentinel 65X supports up to four SNES-compatible controller ports, read under software control using the integrated GPIO pins on the CPU. + +The kernel itself will have, as part of its system timer IRQ, the job of reading in all controllers and storing their state at a known address in memory.