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S3C6400 RISC MICROPROCESSOR
SPECIAL PORT CONTROL REGISTER
Register
SPCON
0x7F0081A0
SPCON
Reserved
[31:21]
nRSTOUT_OEN
Reserved
[19:18]
MEM1_DQS_PUD
[17:16]
MEM1_D_PUD1
[15:14]
MEM1_D_PUD0
[13:12]
MEM0_DQS_PUD
[11:10]
MEM0_D_PUD
USB_DMPD
USB_DPPD
USB_PUSW2
USB_PUSW1
USB_SUSPND
Reserved
LCD_SEL
Note: 1. Pull-up resistance is 1.2kohm. Refer to figure 10-2.
2. Pull-up resistance is 0.5kohm. Refer to figure 10-2.
3. Pull-down resistance is 20kohm. Refer to figure 10-2.
Address
R/W
R/W
Bit
Reserved
[20]
Reset Out pin(XnRSTOUT) output enable
0 = enable
Reserved
Memory Port 1 DQS pin pull-up/down control
00 = disabled
10 = pull-up
Memory Port 1 Data pin [31:16] pull-up/down control
00 = disabled
10 = pull-up
Memory Port 1 Data pin [15:0] pull-up/down control
00 = disabled
10 = pull-up
Memory Port 0 DQS pin pull-up/down control
00 = disabled
10 = pull-up
[9:8]
Memory Port 0(ROM bank) Data pin pull-up/down control
00 = disabled
10 = pull-up
[7]
USB DM Pull-down
0 = disable
[6]
USB DP Pull-down
0 = disable
2)
[5]
USB Pull-up
switch2 is controlable when USB_PUSW1 is on.
0 = off
1)
[4]
USB Pull-up
switch1 control
0 = off
[3]
Make USB Tranceiver PAD to enter suspend mode.
0 = Normal mode
1 = Suspend mode
[2]
Reserved
[1:0]
Select LCD I/F pin configure
00 = Host I/F style
10 = reserved.
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.
Description
Special Port Control Register
Description
1 = disable (hi-Z)
01 = pull-down
11 = Do not use.
01 = pull-down
11 = Do not use.
01 = pull-down
11 = Do not use.
01 = pull-down
11 = Do not use.
01 = pull-down
11 = Do not use.
3)
control
1 = enable
3)
control
1 = enable
1 = on
1 = on
01 = RGB I/F style
11 = reserved.
GPIO
Reset Value
0x00011500
Initial State
0x000
0
00
01
00
01
01
01
0
0
0
0
0
0
00
43
10-
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