diff --git a/ports/arm/platforms/dm36x/dm36x-io.h b/ports/arm/platforms/dm36x/dm36x-io.h
index fe9412a..d3ff841 100644
--- a/ports/arm/platforms/dm36x/dm36x-io.h
+++ b/ports/arm/platforms/dm36x/dm36x-io.h
@@ -181,6 +181,7 @@
 #define DM36X_SYSTEM_PINMUX2        0x08
 #define DM36X_SYSTEM_PINMUX3        0x0C
 #define DM36X_SYSTEM_PINMUX4        0x10
+#define DM36X_SYSTEM_ARM_INTMUX     0x18
 #define DM36X_SYSTEM_EDMA_EVTMUX    0x1C
 #define DM36X_SYSTEM_PERICLKCTL     0x48
 /* PINMUX0 register bitfields */
@@ -403,29 +404,30 @@
 #define DM36X_INTC_PRI6         0x48
 #define DM36X_INTC_PRI7         0x4C
 /** Interrupt controller vector offsets */
-#define DM36X_INTC_VEC_VPSSINT0     0
-#define DM36X_INTC_VEC_VPSSINT1     1
-#define DM36X_INTC_VEC_VPSSINT2     2
-#define DM36X_INTC_VEC_VPSSINT3     3
-#define DM36X_INTC_VEC_VPSSINT4     4
-#define DM36X_INTC_VEC_VPSSINT5     5
-#define DM36X_INTC_VEC_VPSSINT6     6
-#define DM36X_INTC_VEC_VPSSINT7     7
-#define DM36X_INTC_VEC_VPSSINT8     8
-#define DM36X_INTC_VEC_MJCP_SEQINT  9
-#define DM36X_INTC_VEC_HDVICP_INT   10
-#define DM36X_INTC_VEC_EDMA_CC_INT0 16
-#define DM36X_INTC_VEC_SPI1INT0     17
-#define DM36X_INTC_VEC_SPI2INT0     19
-#define DM36X_INTC_VEC_MMC0INT      26
-#define DM36X_INTC_VEC_MMC1INT      27
-#define DM36X_INTC_VEC_TINT0        32
-#define DM36X_INTC_VEC_I2CINT       39
-#define DM36X_INTC_VEC_UART0INT     40
-#define DM36X_INTC_VEC_UART1INT     41
-#define DM36X_INTC_VEC_SPI0INT0     42
-#define DM36X_INTC_VEC_SPI3INT0     43
-#define DM36X_INTC_MAX_VEC          63
+#define DM36X_INTC_VEC_VPSSINT0      0
+#define DM36X_INTC_VEC_VPSSINT1      1
+#define DM36X_INTC_VEC_VPSSINT2      2
+#define DM36X_INTC_VEC_VPSSINT3      3
+#define DM36X_INTC_VEC_VPSSINT4      4
+#define DM36X_INTC_VEC_VPSSINT5      5
+#define DM36X_INTC_VEC_VPSSINT6      6
+#define DM36X_INTC_VEC_VPSSINT7      7
+#define DM36X_INTC_VEC_VPSSINT8      8
+#define DM36X_INTC_VEC_MJCP_SEQINT   9
+#define DM36X_INTC_VEC_HDVICP_INT    10
+#define DM36X_INTC_VEC_EDMA_CC_INT0  16
+#define DM36X_INTC_VEC_SPI1INT0      17
+#define DM36X_INTC_VEC_EDMA_CCERRINT 17
+#define DM36X_INTC_VEC_SPI2INT0      19
+#define DM36X_INTC_VEC_MMC0INT       26
+#define DM36X_INTC_VEC_MMC1INT       27
+#define DM36X_INTC_VEC_TINT0         32
+#define DM36X_INTC_VEC_I2CINT        39
+#define DM36X_INTC_VEC_UART0INT      40
+#define DM36X_INTC_VEC_UART1INT      41
+#define DM36X_INTC_VEC_SPI0INT0      42
+#define DM36X_INTC_VEC_SPI3INT0      43
+#define DM36X_INTC_MAX_VEC           63
 
 
 /** UART registers */