Samsung S3F401F - Manual (Page 170)

S3F401F_UM_REV1.00 I/O PORTS
8-21
PORT1 Open-Drain Control Register OD1 (0x024) Access: Read/Write
31 30 29 28 27 26 25 24
−
P1.30 P1.29 P1.28 P1.27 P1.26 P1.25 P1.24
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
23 22 21 20 19 18 17 16
P1.23 P1.22 P1.21 P1.20 P1.19 P1.18 P1.17 P1.16
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
15 14 13 12 11 10 9 8
P1.15 P1.14 P1.13 P1.12 P1.11 P1.10 P1.9 P1.8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
7 6 5 4 3 2 1 0
P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 P1.0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
W: Write R: Read -0: 0 After reset -1: 1 After reset -U: Undefined after reset
Port1 Open-Drain Selection Bit
P1.0 0 = Disable 1 = Enable P1.21 0 = Disable 1 = Enable|
P1.1 0 = Disable 1 = Enable P1.22 0 = Disable 1 = Enable
P1.2 0 = Disable 1 = Enable P1.23 0 = Disable 1 = Enable
P1.3 0 = Disable 1 = Enable P1.24 0 = Disable 1 = Enable
P1.4 0 = Disable 1 = Enable P1.25 0 = Disable 1 = Enable
P1.5 0 = Disable 1 = Enable P1.26 0 = Disable 1 = Enable
P1.6 0 = Disable 1 = Enable P1.27 0 = Disable 1 = Enable
P1.7 0 = Disable 1 = Enable P1.28 0 = Disable 1 = Enable
P1.8 0 = Disable 1 = Enable P1.29 0 = Disable 1 = Enable
P1.9 0 = Disable 1 = Enable P1.30 0 = Disable 1 = Enable
P1.10 0 = Disable 1 = Enable P1.21 0 = Disable 1 = Enable
P1.11 0 = Disable 1 = Enable P1.22 0 = Disable 1 = Enable
P1.12 0 = Disable 1 = Enable P1.23 0 = Disable 1 = Enable
P1.13 0 = Disable 1 = Enable P1.24 0 = Disable 1 = Enable
P1.14 0 = Disable 1 = Enable P1.25 0 = Disable 1 = Enable
P1.15 0 = Disable 1 = Enable P1.26 0 = Disable 1 = Enable
P1.17 0 = Disable 1 = Enable P1.27 0 = Disable 1 = Enable
P1.18 0 = Disable 1 = Enable P1.28 0 = Disable 1 = Enable
P1.19 0 = Disable 1 = Enable P1.29 0 = Disable 1 = Enable
P1.20 0 = Disable 1 = Enable P1.30 0 = Disable 1 = Enable