Datasheet

ZED-F9T-Data sheet
Figure 3: ZED-F9T timing module SPI specification mode 1: CPHA=0 SCK = 5.33 MHz
Timings 1 - 12 are not specified here as they are dependent on the SPI master. Timings A - E
are specified for SPI slave.
Timing value at 2 pF load Min (ns) Max (ns)
"A" - MISO data valid time (CS) 14 38
"B" - MISO data valid time (SCK) weak driver mode 21 38
"C" - MISO data hold time 114 130
"D" - MISO rise/fall time, weak driver mode 1 4
"E" - MISO data disable lag time 20 32
Table 13: ZED-F9T SPI timings at 2 pF load
Timing value at 20 pF load Min (ns) Max (ns)
"A" - MISO data valid time (CS) 19 52
"B" - MISO data valid time (SCK) weak driver mode 25 51
"C" - MISO data hold time 117 137
"D" - MISO rise/fall time, weak driver mode 6 16
"E" - MISO data disable lag time 20 32
Table 14: ZED-F9T SPI timings at 20 pF load
Timing value at 60 pF load Min (ns) Max (ns)
"A" - MISO data valid time (CS) 29 79
"B" - MISO data valid time (SCK) weak driver mode 35 78
"C" - MISO data hold time 122 152
"D" - MISO rise/fall time, weak driver mode 15 41
"E" - MISO data disable lag time 20 32
Table 15: ZED-F9T SPI timings at 60 pF load
5.3 Slave I2C interface
An I2C-compliant interface is available for communication with an external host CPU. The interface
can be operated in slave mode only. It is fully compatible with the I2C industry standard fast mode.
UBX-18053713 - R06

5 Communications interfaces Page 15 of 23
C1-Public Early production information