SPI Timing Parameters (Read Operation)

K.Yaita

Part Number: LMH1228

Hi Team,

Regarding Figure 3, I would like to ask the followings.

1)
Regarding bue part, there is no description of tSSH (SS hold time) and tSSSU (SS setup time).
Is it omitted?

2)
Regarding red part, I believe tSSH is off course by one SCK clock.
Is it a typo?

Best Regards,
Yaita

over 4 years ago

+1 Nasser Mohammadi over 4 years ago

TI__Guru* 93670 points

Hi Yaita-San,

1). No setup or hold time but Tssof duration must be at minimum i believe 1uS.

2). Yes this is a typo.

Regards,, Nasser

0 K.Yaita over 4 years ago in reply to Nasser Mohammadi

Guru 29720 points

Hi Nasser-san,

Thank you always for your support.

Regarding 1), Is it true?
Does it mean there is no relation between SS_N and SCK in the following red part?

Best Regards,
Yaita

+1 Nasser Mohammadi over 4 years ago in reply to K.Yaita

TI__Guru* 93670 points

Hi Yaita-San,

As long as Tssof is in-active for longer than 1uS, there is no relation between SSN* and SCK.

Regards,, Nasser

Interface

Interface forum

SPI Timing Parameters (Read Operation)