Samsung S3C6400X User Manual page 247

GPIO
GPJDAT
GPJ[15:0]
GPJPUD
GPJ[n]
GPJSLPCON
GPJ[n]
GPJPUDSLP
GPJ[n]
Note:
1. When LCD Bypass mode is set (MIFPCON[3]=1) in sleep mode, GPJSLPCON and GPJPUDSLP cannot
control J port. Because in this case J port IO cells are controlled by Host I/F block(Modem I/F block) and
signals from K, L, M port IO cells. For more information, please refer to figure 10-3.
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.
26
10-
Bit
[11:0] When the port is configured as input port, the corresponding bit is the pin state.
When the port is configured as output port, the pin state is the same as the
corresponding bit. When the port is configured as functional pin, the undefined
value will be read.
Bit
[2n+1:2n] 00 = pull-up/down disabled
n = 0~11 01 = pull-down enabled
10 = pull-up enabled
11 = Reserved.
Bit
[2n+1:2n] 00 = output 0
n = 0~11 01 = output 1
10 = input
11 = Previous state
Bit
[2n+1:2n] 00 = pull-up/down disabled
n = 0~11 01 = pull-down enabled
10 = pull-up enabled
11 = Reserved.
S3C6400 RISC MICROPROCESSOR
Description
Description
Description
Description
Initial State
00