fpga: lib: Update register comments in eth_regs.vh

Original-commit: 791bafd09a30a041a0c6f65dbf395cc4e567911f
2021-06-10 11:56:58 -05:00
parent 43e32abd11
commit a760762db3
1 changed files with 5 additions and 1 deletions
@@ -12,10 +12,14 @@
 //     REG_AWIDTH - How wide the register window is in bits
 //     BASE       - Base address added to the offsets here
 // REGISTER OFFSETS
-// Allocate one full page for MAC
+
+// Allocate one full page for MAC starting ox 0x0000
+// This is the location of MAC address in XGE.
+// It is shadowed in the ethifc.
 localparam [REG_AWIDTH-1:0] REG_MAC_LSB        = BASE + 'h0000;
 localparam [REG_AWIDTH-1:0] REG_MAC_MSB        = BASE + 'h0004;

+// UIO Registers
 // Source IP address
 localparam [REG_AWIDTH-1:0] REG_IP             = BASE + 'h1000;
 // Source UDP Port