S3C9454B View Datasheet(PDF) - Samsung
Part Name
Description
MFG CO.
'S3C9454B' PDF : 199 Pages View PDF
S3C9454B/F9454B
CONTROL REGISTERS
P2CONH — Port 2 Control Register (High Byte)
EAH
Bit Identifier
RESET Value
Read/Write
.7
.6
.5
.4
.3
.2
.1
.0
–
0
0
0
0
0
0
0
–
R/W
R/W
R/W
R/W
R/W
R/W
R/W
.7
Not used for the S3C9454B/F9454B
.6–.4
Port 2, P2.6/ADC8/CLO Configuration Bits
0 0 0 Schmitt trigger input; pull-up enable
0 0 1 Schmitt trigger input
0 1 x ADC input
1 0 0 Push-pull output
1 0 1 Open-drain output; pull-up enable
1 1 0 Open-drain output
1 1 1 Alternative function; CLO output
.3–.2
Port 2, 2.5 Configuration Bits
0 0 Schmitt trigger input; pull-up enable
0 1 Schmitt trigger input
1 0 Push-pull output
1 1 Open-drain output
.1–.0
Port 2, 2.4 Configuration Bits
0 0 Schmitt trigger input; pull-up enable
0 1 Schmitt trigger input
1 0 Push-pull output
1 1 Open-drain output
NOTE: When noise problem is important issue, you had better not use CLO output.
4-13
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