Port1 control register – Samsung S3F401F User Manual
Page 158

S3F401F_UM_REV1.00
I/O
PORTS
8-9
PORT1 Control Register
PCON1H (0x008)
Access: Read/Write
31 30
29 28 27 26 25 24
−
−
P1.30[29:28]
P1.29[27:26]
P1.28[25:24]
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
P1.27[23:22]
P1.26[21:20]
P1.25[19:18]
P1.24[17:16]
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
P1.23 [15:14]
P1.22[13:12]
P1.21[11:10]
P1.20[9:8]
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
P1.19 [7:6]
P1.18 [5:4]
P1.17 [3:2]
P1.16 [1:0]
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
P1.16 PORT
1.16
00 = Input Mode
General IO port
Schmitt-trigger
01 = Output Mode
General IO port
−
10 = SSPFSS0
SSP0 Selection output port
−
11 = INT16
Interrupt input port
−
P1.17 PORT
1.17
00 = Input Mode
General IO port
Schmitt-trigger
01 = Output Mode
General IO port
−
10 = SSPTXD1
SSP1 data output port
−
11 = INT17
Interrupt input port
−
P1.18 PORT
1.18
00 = Input Mode
General IO port
Schmitt-trigger
01 = Output Mode
General IO port
−
10 = SSPRXD1
SSP1 data input port
−
11 = INT18
Interrupt input port
−
P1.19 PORT
1.19
00 = Input Mode
General IO port
Schmitt-trigger
01 = Output Mode
General IO port
−
10 = SSPCLK1
SSP1 Clock input port
−
11 = INT19
Interrupt input port
−