From 142f746da1b904dfc33d6b538810a18a416493be Mon Sep 17 00:00:00 2001 From: cam900 Date: Thu, 8 Dec 2022 19:22:22 +0900 Subject: [PATCH] Add docs --- papers/doc/7-systems/k007232.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/papers/doc/7-systems/k007232.md b/papers/doc/7-systems/k007232.md index 92b4759c4..1e5dc7684 100644 --- a/papers/doc/7-systems/k007232.md +++ b/papers/doc/7-systems/k007232.md @@ -4,6 +4,8 @@ a Konami's 2 channel PCM sound chip was used in their arcade boards in 1986-1990 Its sample format is unique; the topmost bit is the end marker, and the low 7 bits are used for generating sound (unsigned format). +It has 7 bit digital output per each channel and no volume register on chip, so it needs external logic to control channel volume. + # effects - Nothing for now