diff --git a/src/NDS.cpp b/src/NDS.cpp
index 90149add..d42e7356 100644
--- a/src/NDS.cpp
+++ b/src/NDS.cpp
@@ -3001,6 +3001,7 @@ u32 ARM9IORead32(u32 addr)
     case 0x04000130: return (KeyInput & 0xFFFF) | (KeyCnt << 16);
 
     case 0x04000180: return IPCSync9;
+    case 0x04000184: return ARM9IORead16(addr);
 
     case 0x040001A0: return NDSCart::SPICnt | (NDSCart::ReadSPIData() << 16);
     case 0x040001A4: return NDSCart::ROMCnt;
@@ -3378,10 +3379,11 @@ void ARM9IOWrite32(u32 addr, u32 val)
     case 0x04000130:
         KeyCnt = val >> 16;
         return;
+
     case 0x04000180:
+    case 0x04000184:
         ARM9IOWrite16(addr, val);
         return;
-
     case 0x04000188:
         if (IPCFIFOCnt9 & 0x8000)
         {
@@ -3640,6 +3642,7 @@ u32 ARM7IORead32(u32 addr)
     case 0x04000138: return RTC::Read();
 
     case 0x04000180: return IPCSync7;
+    case 0x04000184: return ARM7IORead16(addr);
 
     case 0x040001A0: return NDSCart::SPICnt | (NDSCart::ReadSPIData() << 16);
     case 0x040001A4: return NDSCart::ROMCnt;
@@ -3940,6 +3943,7 @@ void ARM7IOWrite32(u32 addr, u32 val)
     case 0x04000138: RTC::Write(val & 0xFFFF, false); return;
 
     case 0x04000180:
+    case 0x04000184:
         ARM7IOWrite16(addr, val);
         return;
     case 0x04000188:
@@ -3984,6 +3988,11 @@ void ARM7IOWrite32(u32 addr, u32 val)
     case 0x040001B0: *(u32*)&ROMSeed0[8] = val; return;
     case 0x040001B4: *(u32*)&ROMSeed1[8] = val; return;
 
+    case 0x040001C0:
+        SPI::WriteCnt(val & 0xFFFF);
+        SPI::WriteData((val >> 16) & 0xFF);
+        return;
+
     case 0x04000208: IME[1] = val & 0x1; UpdateIRQ(1); return;
     case 0x04000210: IE[1] = val; UpdateIRQ(1); return;
     case 0x04000214: IF[1] &= ~val; UpdateIRQ(1); return;