3.3.10. sram_cycles Register

There is an instance of this register for each SRAM chip supported. You cannot read the read-only sram_cycles Register in the Reset state. Figure 3.15 shows the register bit assignments.

Figure 3.15. sram_cycles Register bit assignments

Table 3.11 lists the register bit assignments.

Table 3.11. sram_cycles Register bit assignments

BitsNameFunction
[31:20]-

Reserved, read undefined.

[19:17]t_tr

Turnaround time for SRAM chip configurations.

Minimum permitted value = 1.

[16:14]t_pc

Page cycle time for SRAM chip configurations.

Minimum permitted value = 1.

[13:11]t_wp

we_n assertion delay.

Minimum permitted value = 1.

[10:8]t_ceoe

oe_n assertion delay for SRAM chip configurations.

Minimum permitted value = 1.

[7:4]t_wc

Write cycle time.

Minimum permitted value = 2.

[3:0]t_rc

Read cycle time.

Minimum permitted value = 2.

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