diff --git a/src/board/arduino/mega2560/parallel.c b/src/board/arduino/mega2560/parallel.c
index 136fde6..5c79cd6 100644
--- a/src/board/arduino/mega2560/parallel.c
+++ b/src/board/arduino/mega2560/parallel.c
@@ -10,6 +10,8 @@
 #include <arch/uart.h>
 
 // Mapping of 24-pin ribbon cable to parallel pins. See schematic
+#define IT8587
+#if defined(IT8587)
 #define PINS \
     /* Data (KSO0 - KSO7) - bi-directional */ \
     PIN(d0, 1) \
@@ -41,6 +43,42 @@
     /* Strap1 (KSI5) */ \
     /*  1K-Ohm pull-down resistor */ \
     PIN(strap_1, 12)
+#elif defined(IT5570)
+#define PINS \
+    /* Data (KSO0 - KSO7) - bi-directional */ \
+    PIN(d0, 24) \
+    PIN(d1, 23) \
+    PIN(d2, 22) \
+    PIN(d3, 18) \
+    PIN(d4, 16) \
+    PIN(d5, 15) \
+    PIN(d6, 12) \
+    PIN(d7, 9) \
+    /* Wait# (KSO9) - input */ \
+    /*  low to indicate cycle may begin, high to indicate cycle may end */ \
+    PIN(wait_n, 7) \
+    /* Write# (KSI0) - output */ \
+    /*  low to indicate write cycle, high to indicate read cycle */ \
+    PIN(write_n, 21) \
+    /* DataStrobe# (KSI1) - output */ \
+    /*  low indicates a data cycle */ \
+    PIN(data_n, 20) \
+    /* Reset# (KSI2) - output */ \
+    /*  low requests device reset */ \
+    PIN(reset_n, 19) \
+    /* AddressStrobe# (KSI3) - output */ \
+    /*  low indicates an address cycle */ \
+    PIN(addr_n, 17) \
+    /* Strap0 (KSI4) */ \
+    /*  1K-Ohm pull-down resistor */ \
+    PIN(strap_0, 14) \
+    /* Strap1 (KSI5) */ \
+    /*  1K-Ohm pull-down resistor */ \
+    PIN(strap_1, 13)
+#else
+    #error "Unknown pin configuration: EC not specified"
+#endif
+
 
 #define DATA_BITS \
     DATA_BIT(0) \