Port Group Etc2 Control Register - Samsung S5PC110 Manual

S5PC110_UM

2.2.52 PORT GROUP ETC2 CONTROL REGISTER

There are two control registers, namely, ETC2PUD and ETC2DRV.
ETC2 ports are dedicated as shown in table below:
ETC2
ETC2[0]
ETC2[1]
ETC2[2] XnRSTOUT
ETC2[3] XnWRESET
ETC2[4] RTC_CLKOUT
ETC2[5] XuotgDRVVBUS
ETC2[6] XuhostPWREN
ETC2[7] XuhostOVERCUR
2.2.52.1 Port Group ETC2 Control Register (ETC2PUD, R/W, Address = 0xE020_0648)
ETC2PUD
ETC2PUD[n]
ETC2PUD[m]
Pin Name
XnRESET System Reset
CLKOUT Clock out signal
For External device reset control
System Warm Reset
RTC Clock out
USB OTG charge pump enable
USB HOST charge pump enable
USB HOST oevercurrent flag
Bit
[2n+1:2n] Reserved(fixed)
ETC2PUD[0] : Disable
n=0~4
ETC2PUD[1] : Disable
ETC2PUD[2] : Disable
ETC2PUD[3] : Pull-up
ETC2PUD[4] : Disable
[2m+1:2m]
00 = Pull-up/ down disabled
01 = Pull-down enabled
m=5~7
10 = Pull-up enabled
11 = Reserved
2 GENERAL PURPOSE INPUT/ OUTPUT
Description
Description
Initial State
0
0
0
0
0
0
0
0
Initial State
0x00
0x00
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