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PRELIMINARY
S3C6400 RISC MICROPROCESSOR
GPIO
10-
53
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
MEMORY INTERFACE DRIVE STRENGTH CONTROL REGISTER
Register
Address
R/W
Description
Reset Value
MEM0DRVCON 0x7F0081D0
R/W
Memory
Port
0 Drive strength Control Register
0x0
MEM1DRVCON 0x7F0081D4
R/W
Memory
Port
1 Drive strength Control Register
0x0
MEM0DRVCON
Bit
Description
Initial State
Reserved [31:30]
Reserved
00
MEM0_ADDRVLD_
RP
[29:28]
Memory port 0 ADDRVLD, RP pin (Xm0ADDRVLD, Xm0RP)
Configure
00
MEM0_FWE_FRE
[27:26]
Memory port 0 FWEn, FREn pin (Xm0FWEn, Xm0FREn)
Configure
00
MEM0_ALE_CLE
[25:24]
Memory port 0 CLE, ALE pin (Xm0CLE, Xm0ALE) Configure
00
MEM0_SCLKn
[23:22]
Memory port 0 SCLKn pin (Xm0SCLKn) Configure
00
MEM0_DQS
[21:20]
Memory port 0 DQS pin (Xm0DQS) Configure
00
MEM0_CKE
[19:18]
Memory port 0 CKE pin (Xm0CKE) Configure
00
MEM0_SCLK
[17:16]
Memory port 0 SCLK pin (Xm0SCLK) Configure
00
MEM0_A
[15:14]
Memory port0 Address pin (Xm0ADDR) Configure
00
MEM0_DQM
[13:12]
Memory port 0 DQM pin (Xm0DQM) Configure
00
MEM0_WEn_OEn
[11:10]
Memory port 0 Write Enable, Out Enable pin (Xm0WEn,
Xm0OEn) Configure
00
MEM0_RAS_CAS
[9:8]
Memory port 0 RAS, CAS pin (Xm0RASn, Xm0CASn)
Configure
00
MEM0_CSn4_7
[7:6]
Memory port 0 Chip Select pin (Xm0CSn[7:4]) Configure
00
MEM0_CSn0_3
[5:4]
Memory port 0 Chip Select pin (Xm0CSn[3:0]) Configure
00
Reserved [3:2]
Reserved
MEM0_D15_0
[1:0]
Memory port 0 Data pin (Xm0DATA[15:0]) Configure
00
MEM0DRVCON
Bit
Description
[2n+1:2n]
n = 0~11
In case of VDDmem = 1.8V
00 = 7mA
01 = 3mA
10 = 14mA
11 = 10mA
In case of VDDmem = 2.5V
00 = 10mA
01 = 5mA
10 = 20mA
11 = 15mA