37.20.36 Timings Register
This register can only be written if the WPEN bit is cleared in the Write Protection Mode Register.
| Name: | HSMC_TIMINGSx |
| Offset: | 0x070C + x*0x14 [x=0..3] |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| NFSEL | TWB[3:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||||
| Reset | 0 | 0 | 0 | 0 | 0 | ||||
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| TRR[3:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 | |||||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| OCMS | TAR[3:0] | ||||||||
| 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 | |
| TADL[3:0] | TCLR[3:0] | ||||||||
| 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 | |
Bit 31 – NFSEL NAND Flash Selection
If this bit is set to one, the chip select is assigned to NAND Flash write enable and read enable lines drive the Error Correcting Code module.
Bits 27:24 – TWB[3:0] WEN High to REN to Busy
Write Enable rising edge to Ready/Busy falling edge timing.
Write Enable to Read/Busy = (TWB[3] * 64) + TWB[2:0] clock cycles.
Bits 19:16 – TRR[3:0] Ready to REN Low Delay
Ready/Busy signal to Read Enable falling edge timing.
Read to REN = (TRR[3] * 64) + TRR[2:0] clock cycles.
Bit 12 – OCMS Off Chip Memory Scrambling Enable
When set to one, the memory scrambling is activated. (Value must be zero if external memory is NAND Flash and NFC is used).
Bits 11:8 – TAR[3:0] ALE to REN Low Delay
Address Latch Enable falling edge to Read Enable falling edge timing.
Address Latch Enable to Read Enable = (TAR[3] * 64) + TAR[2:0] clock cycles.
Bits 7:4 – TADL[3:0] ALE to Data Start
Last address latch cycle to the first rising edge of WEN for data input.
Last address latch to first rising edge of WEN = (TADL[3] * 64) + TADL[2:0] clock cycles.
Bits 3:0 – TCLR[3:0] CLE to REN Low Delay
Command Latch Enable falling edge to Read Enable falling edge timing.
Latch Enable Falling to Read Enable Falling = (TCLR[3] * 64) + TCLR[2:0] clock cycles.