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authorGravatarGravatar AJR <ajrhacker@users.noreply.github.com>2020-03-25 14:50:17 -0400
committerGravatarGravatar AJR <ajrhacker@users.noreply.github.com>2020-03-25 14:50:17 -0400
commita27dee790ee6243e8fafcb6b5d3a11cabd8b0e90 (patch) (github)
tree7f539f03e6ceec1dfa4e8a586506d51bea9e3818 /src/devices
parent3e2e4bfacb4d6b34661cce8389fdc0eb90a80da3 (diff)
downloadmame-a27dee790ee6243e8fafcb6b5d3a11cabd8b0e90.tar.bz2
mame-a27dee790ee6243e8fafcb6b5d3a11cabd8b0e90.zip
ds2404: Note (nw)
Diffstat (limited to 'src/devices')
-rw-r--r--src/devices/machine/ds2404.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/devices/machine/ds2404.cpp b/src/devices/machine/ds2404.cpp
index 27b179b149d..0b62e2dbbcf 100644
--- a/src/devices/machine/ds2404.cpp
+++ b/src/devices/machine/ds2404.cpp
@@ -6,6 +6,11 @@
RTC + BACKUP RAM
+ FIXME: This device implements a parallel interface provided by the
+ Seibu SEI600 for the convenience of SPI emulation. It does not
+ implement the 1-Wire protocol actually used with that ASIC, nor
+ does it implement the alternate 3-Wire serial interface.
+
**********************************************************************/
#include "emu.h"