r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 511

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Table 12.10 Register Status in each Processing Mode
Note:
Register Name
DBSC2 status
register
SDRAM operation
enable register
SDRAM command
control register
SDRAM
configuration
setting register
SDRAM timing
register 0
SDRAM timing
register 1
SDRAM timing
register 2
SDRAM refresh
control register 0
SDRAM refresh
control register 1
SDRAM refresh
control register 2
SDRAM refresh
status register
DDRPAD
frequency setting
register
DDRPAD DIC,
ODT, OCD setting
register
SDRAM mode
setting register
*
Initial value is specified by external pin MODE8.
Abbreviation
DBSTATE
DBEN
DBCMDCNT
DBCONF
DBTR0
DBTR1
DBTR2
DBRFCNT0
DBRFCNT1
DBRFCNT2
DBRFSTS
DBFREQ
DBDICODTOCD
DBMRCNT
H'0000 0x00*
H'0000 0000
H'0000 0200
H'1000 0080
H'0000 0000
H'0000 0000
H'0000 0007
Power-On Reset
By PRESET pin/
WDT/H-UDI
H'0000 0000
H'0000 0000
H'009A 0001
H'0203 0501
H'0001 0001
H'0104 0303
Undefined
Retained
Manual Reset
By WDT/Multiple
Exception
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Rev.1.00 Jan. 10, 2008 Page 481 of 1658
12. DDR2-SDRAM Interface (DBSC2)
Sleep/Deep Sleep
By SLEEP
Instruction
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
Retained
REJ09B0261-0100