ZHCSKS2E april 2020 – june 2023 DRA821U , DRA821U-Q1
PRODUCTION DATA
Table 7-56 and Table 7-57 present Timing requirements and Switching characteristics in MMCSD0 - Legacy SDR Mode (see Figure 7-83 and Figure 7-84).
| NO. | PARAMETER | DESCRIPTION | MIN | MAX | UNIT |
|---|---|---|---|---|---|
| LSDR1 | tsu(cmdV-clkH) | Setup time, MMC0_CMD valid before MMC0_CLK rising edge | 2.5 | ns | |
| LSDR2 | th(clkH-cmdV) | Hold time, MMC0_CMD valid after MMC0_CLK rising edge | 6.5 | ns | |
| LSDR3 | tsu(dV-clkH) | Setup time, MMC0_DAT[7:0] valid before MMC0_CLK rising edge | 2.5 | ns | |
| LSDR4 | th(clkH-dV) | Hold time, MMC0_DAT[7:0] valid after MMC0_CLK rising edge | 6.5 | ns |
Figure 7-83 MMCSD0 -
Legacy SDR - Receive Mode| NO. | PARAMETER | DESCRIPTION | MIN | MAX | UNIT |
|---|---|---|---|---|---|
| fop(clk) | Operating frequency, MMC0_CLK | 25 | MHz | ||
| LSDR5 | tc(clk) | Cycle time, MMC0_CLK | 40 | ns | |
| LSDR6 | tw(clkH) | Pulse duration, MMC0_CLK high | 18.7 | ns | |
| LSDR7 | tw(clkL) | Pulse duration, MMC0_CLK low | 18.7 | ns | |
| LSDR8 | td(clkL-cmdV) | Delay time, MMC0_CLK falling edge to MMC0_CMD transition | –3.2 | 3.8 | ns |
| LSDR9 | td(clkL-dV) | Delay time, MMC0_CLK falling edge to MMC0_DAT[7:0] transition | –3.2 | 3.8 | ns |
Figure 7-84 MMC0 -
Legacy SDR - Transmit Mode