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S3C2451X RISC MICROPROCESSOR
PDDMCON (Power Down SDRAM Control Register)
Register
PDDMCON
PDDMCON
Reserved
PSC_nSCLK
PSC_SCK
PSC_DQMH
PSC_DQML
PSC_DQS
PSC_nSWE
PSC_SDR
PSC_nSCS1
PSC_nSCS0
PSC_SDATAH
PSC_SDATAL
PSC_SADDR
Address
R/W
0x56000114
R/W
Bit
[31:24]
Reserved
nSCLK pin status
[23:22]
00 = output 0 01 = output 1
10 = Hi-Z
SCLK,SCKE pin status (inactive : "0")
[21:20]
00 = output 0 01 = output 1
10 = Hi-Z
DQM[3:2] pin status,
[19:18]
00 = output 0 01 = output 1
10 = Hi-Z
DQM[1:0] pin status,
[17:16]
00 = output 0 01 = output 1
10 = Hi-Z
DQS[1:0] pin status
[15:14]
00 = output 0 01 = output 1
10 = Hi-Z
nSWE pin status
[13:12]
00 = output 0 01 = output 1
10 = Hi-Z
nSCAS, nSRAS pin status (inactive : "1")
[11:10]
00 = output 0 01 = output 1
10 = Hi-Z
nSCS1 pin status
[9:8]
00 = output 0 01 = output 1
10 = Hi-Z
nSCS0 pin status
[7:6]
00 = output 0 01 = output 1
10 = Hi-Z
SDATA[31:16] pin status
[5:4]
00 = output 0 01 = output 1
10 = Hi-Z
SDATA[15:0] pin status
[3:2]
00 = output 0 01 = output 1
10 = Hi-Z
SADDR[15:0] pin status
[1:0]
00 = output 0 01 = output 1
10 = Hi-Z
Description
Memory I/F control register
Description
(inactive :"1" )
11 = Not-Available
11 = Not-Available
(inactive : DQM[3:2] = "00")
11 = Not-Available
(inactive : DQM[1:0] = "11")
11 = Not-Available
(inactive : "0")
11 = Not-Available
(inactive : "1")
11 = Not-Available
11 = Not-Available
(inactive : "1")
11 = Not-Available
(inactive : "1")
11 = Not-Available
(inactive : "0")
11 = Not-Available
(inactive : "0")
11 = Not-Available
(inactive : "0")
11 = Not-Available
I/O PORTS
Reset Value
0x00411540
Reset Value
0x0
01
00
00
01
00
01
01
01
01
00
00
00
11-49
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