diff --git a/src/emu/sound/rf5c68.c b/src/emu/sound/rf5c68.c
index 43dbd764646..dff95e4da8d 100644
--- a/src/emu/sound/rf5c68.c
+++ b/src/emu/sound/rf5c68.c
@@ -161,6 +161,13 @@ static DEVICE_START( rf5c68 )
 /*    RF5C68 write register                     */
 /************************************************/
 
+READ8_DEVICE_HANDLER( rf5c68_r )
+{
+	rf5c68_state *chip = get_safe_token(device);
+
+	return (chip->chan[(offset & 0x1c) >> 2].addr) >> ((offset & 3) >> 8);
+}
+
 WRITE8_DEVICE_HANDLER( rf5c68_w )
 {
 	rf5c68_state *chip = get_safe_token(device);
diff --git a/src/emu/sound/rf5c68.h b/src/emu/sound/rf5c68.h
index 3eaf3f596c6..9082083df8c 100644
--- a/src/emu/sound/rf5c68.h
+++ b/src/emu/sound/rf5c68.h
@@ -10,6 +10,7 @@
 #include "devlegcy.h"
 
 /******************************************/
+READ8_DEVICE_HANDLER( rf5c68_r );
 WRITE8_DEVICE_HANDLER( rf5c68_w );
 
 READ8_DEVICE_HANDLER( rf5c68_mem_r );
diff --git a/src/mame/machine/megadriv.c b/src/mame/machine/megadriv.c
index 6ec5b5b90f0..0bcdad32d3b 100644
--- a/src/mame/machine/megadriv.c
+++ b/src/mame/machine/megadriv.c
@@ -6421,6 +6421,7 @@ static ADDRESS_MAP_START( segacd_map, ADDRESS_SPACE_PROGRAM, 16 )
 	AM_RANGE(0xfe0000, 0xfe3fff) AM_RAM // backup RAM, odd bytes only!
 
 	AM_RANGE(0xff0000, 0xff001f) AM_DEVWRITE8("rfsnd", rf5c68_w, 0x00ff)  // PCM, RF5C164
+	AM_RANGE(0xff0020, 0xff003f) AM_DEVREAD8("rfsnd", rf5c68_r, 0xffff)
 	AM_RANGE(0xff2000, 0xff3fff) AM_DEVREADWRITE8("rfsnd", rf5c68_mem_r, rf5c68_mem_w,0x00ff)  // PCM, RF5C164