cx28250 Mindspeed Technologies, cx28250 Datasheet - Page 115
cx28250
Manufacturer Part Number
cx28250
Description
Cx28250 Atm Physical Interface Phy Devices
Manufacturer
Mindspeed Technologies
Datasheet
1.CX28250.pdf
(213 pages)
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CX28250
ATM Physical Interface (PHY) Devices
0x3B—B3THRESH (B3 Threshold Control Register)
This registers sets the control thresholds for the B3 path fail and path degrade interrupts. Bits 7–4 are the signal
fail threshold exponent (default = 10
0x70–0x71—CDR Test Registers
Reserved Registers: The following locations are reserved for factory test purposes and should not be written to.
28250-DSH-002-C
Address
0x70
0x71
Bit
7
6
5
4
3
2
1
0
Default
Default
0x03
0xFF
0
1
0
0
0
1
1
0
B3Dthresh[3]
B3Dthresh[2]
B3Dthresh[1]
B3Dthresh[0]
B3Fthresh[3]
B3Fthresh[2]
B3Fthresh[1]
B3Fthresh[0]
CDRtest_0
CDRtest_1
Name
Name
–4
Threshold exponent value for setting signal fail status bit 3 (MSB)
Threshold exponent value for setting signal fail status bit 2
Threshold exponent value for setting signal fail status bit 1
Threshold exponent value for setting signal fail status bit 0 (LSB)
Threshold exponent value for setting signal degrade status bit 3 (MSB)
Threshold exponent value for setting signal degrade status bit 2
Threshold exponent value for setting signal degrade status bit 1
Threshold exponent value for setting signal degrade status bit 0 (LSB)
) and bits 3–0 are the signal degrade threshold exponent (default = 10
Reserved; do not write to this address
Reserved; do not write to this address
Mindspeed Technologies
Description
Description
™
4.0 Registers
4.1 Registers
4-17
–6
).
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