T20 JTAG
The SPI bus must be inactive during JTAG configuration.
Important: Refer to T20 Power Up Sequence for power-up
details.
| Symbol | Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| fTCK | TCK frequency. | – | – | 25 | MHz |
| tTDISU | TDI setup time. | 3.5 | – | – | ns |
| tTDIH | TDI hold time. | 1 | – | – | ns |
| tTMSSU | TMS setup time. | 3 | – | – | ns |
| tTMSH | TMS hold time. | 1 | – | – | ns |
| tTCKTDO | TCK falling edge to TDO output. | – | – | 10.51 | ns |
| tDMIN | Minimum time between deassertion of CRESET_N to first valid configuration data. | 1.2 | – | – | μs |
The SPI bus must be inactive during JTAG configuration.
Important: Refer to T20 Power Up Sequence for power-up
details.
| Symbol | Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| fTCK | TCK frequency. | – | – | 25 | MHz |
| tTDISU | TDI setup time. | 3.5 | – | – | ns |
| tTDIH | TDI hold time. | 2.5 | – | – | ns |
| tTMSSU | TMS setup time. | 3 | – | – | ns |
| tTMSH | TMS hold time. | 2.5 | – | – | ns |
| tTCKTDO | TCK falling edge to TDO output. | – | – | 10.5 | 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.
1 0 pf output loading.