DS250DF230: Retimer's profile file(.exe) of SigCon Architect EVM GUI

Frank Lu1

Prodigy 20 points

Part Number: DS250DF230
Other Parts Discussed in Thread: DS250DF210, DS250DF410, DS250DF810, DS280DF810

1) Hi, where can I download the DS250DF230 Retimer's profile file(.exe) of SigCon Architect EVM GUI?

2) Is the profile of DS250DF230 the same as DS250DF210?

over 5 years ago

0 Nasser Mohammadi over 5 years ago

TI__Guru* 93670 points

Hi Frank,

1). Please send me email with your company email address and we can provide access to the DS250DF230 design documents including updater and other documents. Here is email address: nasser.mohammadi@ti.com

2). Please note temperature lock range is different between these two products. DS250DF230 is more geared toward wireless back haul and has higher temperature lock range(~150 degC).

Regards,, nasser

0 Frank Lu1 over 5 years ago in reply to Nasser Mohammadi

Prodigy 20 points

Hi Nasser, Rodrigo,

Thank you, and I still have questions about register value setting in programming guide,

For DS250DF230, When using external 25MHz (NOT 30.72MHz) oscillator clock,

1) Table 23 & Table 24 are NOT applicable for DS250DF230 using 25MHz, right?

Can I still utilize Reg_0x2F for standard rate setting for DS250DF230 using 25MHz, how and which table?

2) If I set both Reg_0x2F & Register 0x60, 0x61, 0x62, 0x63 values with different rate/sub-rate, which register(s) will take effect/prioritize?

3) Should I calculate the Reg_0x60 - Reg_0x63 value through the formula (6)-(11) in programming guide section 7.7.1?

Or can I also use SigCon GUI & updater.exe to input the rate & tolerance to let GUI to generate the registers value automatically?

Or both 2 methods work?

7.6 Standard Data Rate Settings
The DS2x0DFxx0 channels must each be preprogrammed for the expected data rate(s) to ensure CDR
lock. Users can program the rate/sub-rate to one of a set of pre-defined standard values to quickly
configure the DS2x0DFxx0. The rate/sub-rate settings are programmed by writing to channel
Reg_0x2F[7:4].
Table 23. DS280DF810, DS250DF810, DS250DF410, DS250DF210 Standard Rate Modes
Configurable from Reg_0x2F

STANDARD RATE SETTING	REG_0x2F VALUE [HEX]	REG_0x2F WRITE MASK [HEX]
10.3125 Gbps	00	F0
10.9375 Gbps	10
12.5 Gbps	20
RESERVED	30
25.0 Gbps	40
25.78125 Gbps (default)	50
RESERVED	60
28.125 Gbps	70 (DS280DF810 only)

Table 24. DS250DF230 Beta Version Standard Rate Modes Configurable from Reg_0x2F(1)

STANDARD RATE SETTING	REG_0x2F VALUE [HEX]	REG_0x2F WRITE MASK [HEX]	RECOVERED CLOCK FREQUENCY [MHZ]
12.16512 Gbps	00	F0	30.72
9.83040 Gbps	10	30.72
10.13760 Gbps	20	30.72
24.33024 Gbps	30	30.72
4.91520 Gbps	40	30.72
25.78125 Gbps(Default)	50	32.2265625
10.31250 Gbps	60	32.2265625
25.78125 Gbps	32.2265625
10.31250 Gbps	70	32.2265625
6.14400 Gbps	80	30.72

(1) This table is valid only when the calibration clock is 30.72-MHZ

7.7 Manual Data Rate Configuration

7.7.1 25-MHz Calibration Clock
The procedure for calculating the register 0x60, 0x61, 0x62, 0x63 values when the calibration clock is 25
MHz is as follows:

REG_0x60_val = Floor{(DataRate * 1024) / (64 * 25E6)} & 0x00FF, For DataRate > 13E9 bps	(6)
REG_0x60_val = Floor{(DataRate * 1024) / (32 * 25E6)} & 0x00FF, For DataRate ≤ 13E9 bps	(7)
REG_0x61_val = Floor{(DataRate * 1024) / (64 * 25E6)} & 0xFF00 >> 8 \| 0x80, For DataRate > 13E9 bps	(8)
REG_0x61_val = Floor{(DataRate * 1024) / (32 * 25E6)} & 0xFF00 >> 8 \| 0x80, For DataRate ≤ 13E9 bps	(9)
REG_0x62_val = Reg_0x60_val	(10)
REG_0x63_val = Reg_0x61_val	(11)

For reference, Table 25 shows the register values for manually programming a few standard data rates.

Table 25. Register Settings for Common Data Rates using 25-MHz Calibration Clock

DATA RATE	REG_0x60 VALUE [HEX]	REG_0x61 VALUE [HEX]	REG_0x62 VALUE [HEX]	REG_0x63 VALUE [HEX]	REG_0x18[6:4] VALUE [HEX]
25.78125 Gbps(1)	74	C0	74	C0	0
25.0 Gbps(1)	80	BE	80	BE	0
20.625 Gbps	90	B3	90	B3	0
12.5 Gbps(1)	80	BE	80	BE	1
10.3125 Gbps(1)	90	B3	90	B3	1

(1) These rates can also be configured by selecting the appropriate rate setting in Reg_0x2F.

0 Nasser Mohammadi over 5 years ago in reply to Frank Lu1

TI__Guru* 93670 points

Hi Frank,

Please note Rodrigo has already responded to this question through the email you had sent him.

Regards,, Nasser

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DS250DF230: Retimer's profile file(.exe) of SigCon Architect EVM GUI