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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 1733
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
Register (pl353) set_opmode
Field Name Bits Type Reset Value Description
Set_t6
(SET_T6)
23:20 wo x Timing parameter for SRAM/NOR, bit 20 only
(other bits are ignored):
o For asynchronous multiplexed transfers this bit
controls when the SMC asserts we_n:
0: assert we_n two mclk cycles after asserting
cs_n.
1: assert we_n and cs_n together.
Timing parameter for NAND Flash, bits 23:20:
o Busy to RE timing (t_rr), minimum permitted
value = 0.
Set_t5
(SET_T5)
19:17 wo x Timing parameter for SRAM/NOR:
o Turnaround time (t_ta), minimum value = 1.
Timing parameter for NAND Flash:
o ID read time (t_ar), mnimum value = 0.
Set_t4
(SET_T4)
16:14 wo x Timing parameter for SRAM/NOR:
o Page cycle time (t_pc), minimum value = 1.
Timing parameter for NAND Flash:
o Page cycle time (t_clr), minimum value = 1.
Set_t3
(SET_T3)
13:11 wo x Timing parameter for SRAM/NOR:
o Write Enable (t_wp) assertion delay, minimum
value = 1.
Timing parameter for NAND Flash:
o Write Enable (t_wp) deassertion delay,
minimum value = 1.
Set_t2
(SET_T2)
10:8 wo x Timing parameter for SRAM/NOR:
o Output Enable (t_ceoe) assertion delay,
minimum value = 1.
Timing parameter for NAND Flash:
o REA (t_rea) assertion delay, minimum value = 1.
Set_t1
(SET_T1)
7:4 wo x Timing parameter for SRAM/NOR and NAND
Flash:
Write cycle time, minimum value = 2.
Set_t0
(SET_T0)
3:0 wo x Timing parameter for SRAM/NOR and NAND
Flash:
Read cycle time, minimum value = 2.
Name set_opmode
Software Name SET_OPMODE
Relative Address 0x00000018