Table of Contents
Advertisement
S3C2451X RISC MICROPROCESSOR
DSCn (Drive Strength Control)
Control the Memory I/O drive strength
Register
DSC0
DSC1
DSC2
DSC3
DSC0
Reserved
DSC_CF
DSC_nRBE
DSC_nROE
DSC_nRWE
DSC_nRCS5
DSC_nRCS4
DSC_nRCS3
DSC_nRCS2
DSC_nRCS1
DSC_nRCS0
DSC_RADDRH
DSC_RADDRL
DSC_RADDR0
DSC_RDATA1
DSC_RDATA0
Address
R/W
0x560000c0
R/W
0x560000c4
R/W
0x560000c8
R/W
0x56000110
R/W
Bit
[31:30]
[29:28]
nWE_CF, nOE_CF Drive strength
00: 5.2mA
21.0mA
[27:26]
nRBE, nROE, nRWE Drive strength
00: 5.2mA
[25:24]
21.0mA
[23:22]
[21:20]
nRCS5 ~ nRCS0 Address Bus Drive strength.
00: 5.2mA
[19:18]
21.0mA
[17:16]
[15:14]
[13:12]
[11:10]
[9:8]
ROM Address Bus[25:16] Drive strength.
00: 5.2mA
21.0mA
[7:6]
ROM Address Bus[15:1] Drive strength.
00: 5.2mA
21.0mA
[5:4]
ROM Address Bus[0] Drive strength.
00: 5.2mA
21.0mA
[3:2]
ROM DATA[15:8] I/O Drive strength.
00: 5.2mA
21.0mA
[1:0]
ROM DATA[7:0] I/O Drive strength.
00: 5.2mA
21.0mA
Description
Strength control register 0
Strength control register 1
Strength control register 2
Strength control register 3
Description
Reserved
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
01: 10.5mA
10: 15.7mA
I/O PORTS
Reset Value
0x2aaa_aaaa
0xaaa_aaaa
0xaa8_aaaa
0x2aa
Reset Value
0x0
10
11:
10
11:
10
10
10
11:
10
10
10
10
10
10
11:
10
11:
10
11:
10
11:
10
11:
11-45
Advertisement
Chapters
Table of Contents
