From af16ae5e4885d6d2b6521f25aac91f939efbe3dd Mon Sep 17 00:00:00 2001
From: Jasper Gerth <jaspergerth@gmail.com>
Date: Thu, 17 Dec 2020 09:08:26 +0100
Subject: [PATCH] Read all 16 bits in readPhyByte, not just upper 8 bits
 Adjusted isLinkUp accordingly

---
 src/enc28j60.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/enc28j60.cpp b/src/enc28j60.cpp
index 586b638..a7ae63b 100644
--- a/src/enc28j60.cpp
+++ b/src/enc28j60.cpp
@@ -353,7 +353,7 @@ static uint16_t readPhyByte (byte address) {
     while (readRegByte(MISTAT) & MISTAT_BUSY)
         ;
     writeRegByte(MICMD, 0x00);
-    return readRegByte(MIRD+1);
+    return readRegByte(MIRD) | readRegByte(MIRD+1)<<8; //Read MIRDL and MIRDH
 }
 
 static void writePhy (byte address, uint16_t data) {
@@ -415,7 +415,7 @@ byte ENC28J60::initialize (uint16_t size, const byte* macaddr, byte csPin) {
 }
 
 bool ENC28J60::isLinkUp() {
-    return (readPhyByte(PHSTAT2) >> 2) & 1;
+    return (readPhyByte(PHSTAT2) >> 10) & 1; //LSTAT is bit 10
 }
 
 /*