37.15.4 PHY Control Register 0C

Table 37-84. Register Bit Attribute Legend
SymbolDescriptionSymbolDescriptionSymbolDescription
RReadable bitHCCleared by Hardware(Grey cell)Unimplemented
WWritable bitHSSet by HardwareXBit is unknown at Reset
KWrite to clearSSoftware settable bit
Name: PHY0C
Offset: 0x150C
Reset: 0x000000E0
Property: PAC Write-Protection

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
          
Access  
Reset  
Bit 76543210 
 TUNE[2:0]      
Access R/WR/WR/W 
Reset 111 

Bits 7:5 – TUNE[2:0] Amplitude Tuning

Sets the lower 3 bits of the HS amplitude tuning.

Settings include the lower bits (PHY0C.5:7) and upper bit the upper bit (PHY10.0:4) – setting of each bit location lowers the amplitude by the same amount regardless of location.

ValueDescription
11111111Setting with the smallest amplitude
101011004-‘0’ and 4-‘1’ is the middle amplitude
00000000Setting with the largest amplitude