diff --git a/Kernel/platform/platform-rcbus-z180/plt_ch375.h b/Kernel/platform/platform-rcbus-z180/plt_ch375.h
new file mode 100644
index 0000000000..21518d2d14
--- /dev/null
+++ b/Kernel/platform/platform-rcbus-z180/plt_ch375.h
@@ -0,0 +1,13 @@
+extern void nap20(void);
+extern void ch375_rblock(uint8_t *ptr) __z88dk_fastcall;
+extern void ch375_wblock(uint8_t *ptr) __z88dk_fastcall;
+
+__sfr __at 0xBE ch375_dport;
+__sfr __at 0xBF ch375_sport;
+
+#define ch375_rdata()	ch375_dport
+#define ch375_rstatus()	ch375_sport
+
+#define ch375_wdata(x)	do {ch375_dport = (x); } while(0)
+#define ch375_wcmd(x)	do {ch375_sport = (x); } while(0)
+