Digi NS9750 - Manual (Page 254)

R e g i s t e r s
2 3 0 N S 9 7 5 0 H a r d w a r e R e f e r e n c e
Static Memory Configuration 0–3 registers
Address: A070 0200 / 0220 / 0240 / 0260
The Static Memory Configuration 0–3 registers configure the static memory
configuration. It is recommended that these registers be modified during system
initialization, or when there are no current or outstanding transactions. Wait until
the memory controller is idle, then enter low-power or disabled mode.
Register bit assignment
Bits Access Mnemonic Description
D31:21 N/A Reserved N/A (do not modify)
D20 R/W PSMC Write protect
0 Writes not protected (reset value on reset_n )
1 Write protected
D19 R/W BSMC Buffer enable
0 Write buffer disabled (reset value on reset_n )
1 Write buffer enabled
Note: This field must always be set to 0 when a peripheral other
than SRAM is attached to the static ram chip select.
D18:09 N/A Reserved N/A (do not modify)
Table 159: Static Memory Configuration 0–3 registers
13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 16 30
Reserved PSMC BSMC Reserved
Reserved EW PB PC Reserved PM Rsvd MW