diff --git a/libraries/Ethernet/src/utility/w5100.cpp b/libraries/Ethernet/src/utility/w5100.cpp
index d0a9bb2293a..57d787b4a1e 100644
--- a/libraries/Ethernet/src/utility/w5100.cpp
+++ b/libraries/Ethernet/src/utility/w5100.cpp
@@ -22,8 +22,26 @@ W5100Class W5100;
 #define TXBUF_BASE 0x4000
 #define RXBUF_BASE 0x6000
 
+uint8_t W5100Class::slaveSelect = 10; 
+
+void W5100Class::select(uint8_t _ss) { 
+  slaveSelect = _ss; 
+} 
+void W5100Class::initSS(void) {  
+  digitalWrite(slaveSelect, HIGH);  
+} 
+void W5100Class::setSS(void) {  
+  digitalWrite(slaveSelect, LOW);  
+} 
+void W5100Class::resetSS(void) {  
+  digitalWrite(slaveSelect, HIGH); 
+} 
+
 void W5100Class::init(void)
 {
+  pinMode(slaveSelect,OUTPUT); 
+  digitalWrite(slaveSelect,HIGH); 
+  
   delay(300);
 
 #if defined(ARDUINO_ARCH_AVR)
diff --git a/libraries/Ethernet/src/utility/w5100.h b/libraries/Ethernet/src/utility/w5100.h
index fd9ea35ec2d..d2b5177e168 100644
--- a/libraries/Ethernet/src/utility/w5100.h
+++ b/libraries/Ethernet/src/utility/w5100.h
@@ -137,6 +137,7 @@ class W5100Class {
 
 public:
   void init();
+  void select(uint8_t _ss); 
 
   /**
    * @brief	This function is being used for copy the data form Receive buffer of the chip to application buffer.
@@ -330,25 +331,12 @@ class W5100Class {
   uint16_t RBASE[SOCKETS]; // Rx buffer base address
 
 private:
-#if defined(ARDUINO_ARCH_AVR)
-#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  inline static void initSS()    { DDRB  |=  _BV(4); };
-  inline static void setSS()     { PORTB &= ~_BV(4); };
-  inline static void resetSS()   { PORTB |=  _BV(4); };
-#elif defined(__AVR_ATmega32U4__)
-  inline static void initSS()    { DDRB  |=  _BV(6); };
-  inline static void setSS()     { PORTB &= ~_BV(6); };
-  inline static void resetSS()   { PORTB |=  _BV(6); }; 
-#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB162__)
-  inline static void initSS()    { DDRB  |=  _BV(0); };
-  inline static void setSS()     { PORTB &= ~_BV(0); };
-  inline static void resetSS()   { PORTB |=  _BV(0); }; 
-#else
-  inline static void initSS()    { DDRB  |=  _BV(2); };
-  inline static void setSS()     { PORTB &= ~_BV(2); };
-  inline static void resetSS()   { PORTB |=  _BV(2); };
-#endif
-#endif // ARDUINO_ARCH_AVR
+
+  static uint8_t  slaveSelect; 
+  static void initSS(void); 
+  static void setSS(void); 
+  static void resetSS(void); 
+
 };
 
 extern W5100Class W5100;