Difference between revisions of "Config Mapping Register"

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(Created page with "{{NextRegister |Number=4 |Readable=No |Writable=Yes |ShortDesc=In config mode, allows RAM to be mapped to ROM area. }}")
 
(updated to 78a6ee50)
 
(4 intermediate revisions by 3 users not shown)
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{{NextRegister
 
{{NextRegister
|Number=4
+
|Number=$04
 
|Readable=No
 
|Readable=No
 
|Writable=Yes
 
|Writable=Yes
 
|ShortDesc=In config mode, allows RAM to be mapped to ROM area.
 
|ShortDesc=In config mode, allows RAM to be mapped to ROM area.
 
}}
 
}}
 +
Write (config mode only, bootrom disabled):
 +
  bit 7 = Reserved, must be 0
 +
  bits 6:0 = 16K SRAM bank mapped to 0x0000-0x3FFF (hard reset = 0)
 +
  ** Even multiplies of 256K are unreliable if storing data in sram for the next core started.

Latest revision as of 10:54, 3 November 2024

Number $04
Readable No
Writable Yes
Short Description In config mode, allows RAM to be mapped to ROM area.

Write (config mode only, bootrom disabled):

  bit 7 = Reserved, must be 0
  bits 6:0 = 16K SRAM bank mapped to 0x0000-0x3FFF (hard reset = 0)
  ** Even multiplies of 256K are unreliable if storing data in sram for the next core started.