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Field
Name
R/W
Description
1
SRMEN
R/W
Put SDRM in Self-Refresh Mode Enable
0: Invalid
1: Enable
2
PDMEN
R/W
Put SDRM in Power-Down Mode Enable
0: Disable
1: Enable
3
PCACFG
R/W
Precharge Algorithm Configure
0: Precharge the row immediately after read operation.
1: Precharge the row after a period of delay upon completion of
read operation.
4
FRBSREN
R/W
Full Refresh Before Entering Self-Refresh Mode
0: Only refresh one row before entering self-refresh mode
1: Refresh all rows before entering self-refresh mode
5
FRASREN
R/W
Full Refresh After Exit Self-Refresh Mode
0: Only refresh one row before after exiting self-refresh mode
1: Refresh all rows after exiting self-refresh mode
8:6
RDNUMCFG
R/W
Configure Number Of Registers Inserted In Read Data Path
000: 0 register
001: 1 register
……
111: 7 registers
9
MODESET
R/W
Mode Setup
1: Update SDRAM mode register.
After the mode register is
updated, the hardware will clear the bit automatically
10
Reserved
11
SRMFLG
R
Self-refresh mode flag
1: Indicate that the current SDRAM is stored in self-refresh mode.
This bit is valid when FRBSREN position is 1.
15:12
BANKNUMCFG
R/W
Number Of Open Banks Configure
The quantity of opened Banks in the SDRAM.
0000: 1 bank
0001: 2 banks
……
1111: 16 banks
31:16
Reserved
Refresh register (DMC_REF)
Offset address: 0x10
Reset value: 0x0000 00C3
Field
Name
R/W
Description
15:0
RCYCCFG
R/W
Refresh Cycle Configure
Specify the number of clock cycles between two consecutive
refreshes.
31:16
Reserved