ZHCSE42D April 2015 – April 2019 ADS54J60
PRODUCTION DATA.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| SYNC REG | SYNC REG EN | JESD FILTER | JESD MODE | ||||
| R/W-0h | R/W-0h | R/W-0h | R/W-01h | ||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 7 | SYNC REG | R/W | 0h | Register control for sync request.
0 = Normal operation 1 = ADC output data are replaced with K28.5 characters. Register bit SYNC REG EN must also be set to 1. |
| 6 | SYNC REG EN | R/W | 0h | Enables register control for sync request.
0 = Use the SYNC pin for sync requests 1 = Use the SYNC REG register bit for sync requests |
| 5-3 | JESD FILTER | R/W | 0h | These bits and the JESD MODE bits set the correct LMFS configuration for the JESD interface. The JESD FILTER setting must match the configuration in the decimation filter page.
000 = Filter bypass mode See Table 54 for valid combinations for register bits JESD FILTER along with JESD MODE. |
| 2-0 | JESD MODE | R/W | 01h | These bits select the number of serial JESD output lanes per ADC. The JESD PLL MODE register bit located in the JESD analog page must also be set accordingly.
001 = Default after reset(Eight active lanes) See Table 54 for valid combinations for register bits JESD FILTER along with JESD MODE. |
| REGISTER BIT JESD FILTER | REGISTER BIT JESD MODE | DECIMATION FACTOR | NUMBER OF ACTIVE LANES PER DEVICE |
|---|---|---|---|
| 000 | 100 | No decimation | Four lanes are active |
| 000 | 010 | No decimation | Four lanes are active |
| 000 | 001 | No decimation
(default after reset) |
Eight lanes are active |
| 111 | 001 | 4X (IQ) | Four lanes are active |
| 110 | 001 | 2X | Four lanes are active |
| 110 | 010 | 2X | Two lanes are active |
| 100 | 001 | 4X | Two lanes are active |
| 111 | 010 | 4X (IQ) | Two lanes are active |
| 100 | 010 | 4X | One lane is active |