40.7.9 ADPRE
Note: The individual bytes in this multibyte
register can be accessed with the following register names:
- ADPREH: Accesses the high byte ADPRE[12:8].
- ADPREL: Accesses the low byte ADPRE[7:0].
| Name: | ADPRE |
| Address: | 0x3F1 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| PRE[12:8] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||||
| Reset | 0 | 0 | 0 | 0 | 0 | ||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| PRE[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 12:0 – PRE[12:0] Precharge Time Select
| PRE | Precharge Time | |
|---|---|---|
CS =
0 |
CS =
1 |
|
1 1111
1111 1111 |
8191 clocks of FOSC | 8191 clocks of ADCRC |
1 1111
1111 1110 |
8190 clocks of FOSC | 8190 clocks of ADCRC |
1 1111
1111 1101 |
8189 clocks of FOSC | 8189 clocks of ADCRC |
| ... | ... | ... |
0 0000
0000 0010 |
2 clocks of FOSC | 2 clocks of ADCRC |
0 0000
0000 0001 |
1 clocks of FOSC | 1 clocks of ADCRC |
0 0000
0000 0000 |
Not included in the data conversion cycle | |