SI5040-D-GM Silicon Laboratories Inc, SI5040-D-GM Datasheet - Page 93

• Manufacturer Part Number: SI5040-D-GM
• Description: IC TXRX XFP 10GBPS 32LGA
• Manufacturer: Silicon Laboratories Inc

Specifications of SI5040-D-GM

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Register 180. TxtpChkErrCnt (MSB of a 40-bit Register)
Reset settings = undefined
Register 181. TxtpChkErr
Reset settings = undefined
Bit
7:0
Bit
7:0
Name
Name
Type
Type
Bit
Bit
TxtpChkErrCnt[39:32] Transmitter Test Pattern Checker Error Count.
TxtpChkErr[7:0] Transmitter Test Pattern Checker Error.
Name
Name
D39
D7
Measured error count in 8-bit floating point notation. The content of this register is an
alternative format to the TxtpChkErrCnt.
Mantissa = bits [7:4]
Exponent = bits [3:0]
Error count = (Mantissa/16) x 16
0000 0000 = 0 (decimal)
0101 0111 = (5/16) x 16
1111 1111 = (15/16) x 16
D38
D6
When using a defined timebase, this register holds the error count from the last
completed timebase. In the continuous timebase setting, the register holds the cur-
rent running error count. Reading the least significant byte latches the upper bytes.
Note: Combined registers 176 to 180,
0000000000 = 0 (decimal)
FFFFFFFFFF = 2
D37
D5
7
15
(decimal)
(decimal)
TxtpChkErrCnt[39:32]
Rev. 0.86
D36
40
D4
TxtpChkErr[7:0]
– 1 (decimal)
Exponent
R
R
Function
D35
D3
Function
D34
D2
D33
D1
Si5040
D32
D0
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