SI53159-A01AGM Datasheet, PDF (14/22 Pages) Silicon Laboratories – PCI-EXPRESS GEN 1, GEN 2, & GEN 3 NINE OUTPUT FANOUT BUFFER

Si53159
Control Register 3. Byte 3
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
Rev Code[3:0]
Vendor ID[3:0]
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset settings = 00001000
Bit
Name
Function
7:4
Rev Code[3:0] Program Revision Code.
3:0
Vendor ID[3:0] _{Vendor Identification Code.}
Control Register 4. Byte 4
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
BC[7:0]
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset settings = 00000110
Bit
Name
7:0
BC[7:0]
Byte Count Register.
Function
Control Register 5. Byte 5
Bit
D7
D6
D5
D4
D3 D2 D1 D0
Name DIFF_Amp_Sel DIFF_Amp_Cntl[2] DIFF_Amp_Cntl[1] DIFF_Amp_Cntl[0]
Type
R/W
R/W
R/W
R/W
R/W R/W R/W R/W
Reset settings = 11011000
Bit
Name
Function
7
DIFF_Amp_Sel Amplitude Control for DIFF Differential Outputs.
0: Differential outputs with Default amplitude.
1: Differential outputs amplitude is set by Byte 5[6:4].
6
DIFF_Amp_Cntl[2] _{DIFF Differential Outputs Amplitude Adjustment.}
5
DIFF_Amp_Cntl[1] _{000: 300 mV 001: 400 mV 010: 500 mV 011: 600 mV}
4
DIFF_Amp_Cntl[0] ^{100: 700 mV 101: 800 mV 110: 900 mV 111: 1000 mV}
3:0
Reserved
14
Rev. 1.0