T20 SPI Passive

Figure 1. SPI Passive Mode (x1) Timing Sequence
The JTAG pins must be inactive during SPI passive configuration.

Table 1. Passive Mode Timing Parameters (W80, Q100F3, Q144, F169, and F256 Packages)
Symbol Parameter Min Typ Max Units
fMAX_S Passive mode X1 configuration clock frequency. – – 25 MHz
Passive mode X2, X4 or X8 configuration clock frequency. – – 50 MHz
Passive mode X16 or X32 configuration clock frequency. – – 100 MHz
tCLKH Configuration clock pulse width high. 0.48*1/fMAX_S – – ns
tCLKL Configuration clock pulse width low. 0.48*1/fMAX_S – – ns
tSU Setup time. 6 – – ns
tH Hold time. 1 – – ns
tDMIN Minimum time between deassertion of CRESET_N to first valid configuration data. 1.2 – – μs
Table 2. Passive Mode Timing Parameters (F324 and F400 Packages)
Symbol Parameter Min Typ Max Units
fMAX_S Passive mode X1 configuration clock frequency. – – 25 MHz
Passive mode X2, X4 or X8 configuration clock frequency. – – 50 MHz
Passive mode X16 or X32 configuration clock frequency. – – 100 MHz
tCLKH Configuration clock pulse width high. 0.48*1/fMAX_S – – ns
tCLKL Configuration clock pulse width low. 0.48*1/fMAX_S – – ns
tSU Setup time. 6.5 – – ns
tH Hold time. 1 – – ns
tDMIN Minimum time between deassertion of CRESET_N to first valid configuration data. 1.2 – – μs
Note: Refer to T20 Power Up Sequence for details on the power-up requirements.