DS110DF111: Register 0x2C[6] (Scale VEO based on Eye Monitor Vrange) default value

Zach Kimble

Intellectual 1940 points

Part Number: DS110DF111

Hello,

I see that register 0x2C[6], which says "Scale VEO based on Eye Monitor Vrange" is set to 1 by default. Does 1 mean that the VEO value will scale with the eye monitor Vrange by default or is this bit an "active low" bit that would need to be changed to 0 to scale the VEO based on eye monitor Vrange?

Thank you!

Best regards,

Zach Kimble

over 1 year ago

+1 Lucas Wolter over 1 year ago

TI__Mastermind 27700 points

Hi Zach,

This is a little confusing, but I expect that 0x2C[6] does not affect the VEO value in register 0x28. VEO can always be calculated as VEO [mV] = ch reg 0x28 x 3.125. 0x2C[6] has an effect on the vertical range when capturing a full eye diagram with registers 0x25 and 0x26. When 0x2C[6] = 1, the eye monitor vrange is automatically scaled. When 0x2C[6] = 0, the eye monitor vrange can be manually set with register 0x11[7:6].

Best,

Lucas

0 Zach Kimble over 1 year ago in reply to Lucas Wolter

TI__Intellectual 1940 points

Hi Lucas,

Thank you for your response! That makes sense.

Best regards,

Zach Kimble

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DS110DF111: Register 0x2C[6] (Scale VEO based on Eye Monitor Vrange) default value