ZHCSKS2E april 2020 – june 2023 DRA821U , DRA821U-Q1
PRODUCTION DATA
| NO.(1) | PARAMETER | DESCRIPTION | MODE | MIN | MAX | UNIT |
|---|---|---|---|---|---|---|
| O19 | tsu(D-CLK) | Setup time, D[i:0] valid before active CLK edge | 1.8V, No Loopback Clock | 4.8 | ns | |
| 3.3V, No Loopback Clock | 5.39 | ns | ||||
| O20 | th(CLK-D) | Hold time, D[i:0] valid after active CLK edge | 1.8V, No Loopback Clock | -0.5 | ns | |
| 3.3V, No Loopback Clock | -0.5 | ns | ||||
| O21 | tsu(D-LBCLK) | Setup time, D[i:0] valid before active LBCLK input (DQS) edge | 1.8V, External Board Loopback Clock | 0.6 | ns | |
| 3.3V, External Board Loopback Clock | 0.9 | ns | ||||
| O22 | th(LBCLK-D) | Hold time, D[i:0] valid after active LBCLK input (DQS) edge | 1.8V, External Board Loopback Clock | 1.7 | ns | |
| 3.3V, External Board Loopback Clock | 2 | ns |
Figure 7-108 OSPI
Timing Requirements – SDR, No Loopback Clock and Internal Pad Loopback
Clock
Figure 7-109 OSPI
Timing Requirements – SDR, External Loopback Clock| MODE | OSPI_PHY_CONFIGURATION_REG BIT FIELD |
DELAY VALUE |
|---|---|---|
| TRANSMIT | ||
| 1.8 V | PHY_CONFIG_TX_DLL_DELAY_FLD | 0x54 |
| 3.3 V | PHY_CONFIG_TX_DLL_DELAY_FLD | 0x55 |
| RECEIVE | ||
| 1.8 V, DQS | PHY_CONFIG_RX_DLL_DELAY_FLD | 0x2D |
| 3.3 V, DQS | PHY_CONFIG_RX_DLL_DELAY_FLD | 0x29 |
| All other modes | PHY_CONFIG_RX_DLL_DELAY_FLD | 0x0 |
For more information, see Octal Serial Peripheral Interface (OSPI) section in Peripherals chapter in the device TRM.