Samsung S3F401F Hardware User Manual page 14

EVALUATION BOARD MANUAL S3F401F_BD_UM_REV1.00
2.1.5 7-SEGMENT BLOCK
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The assignment of 7-segment control pins on the S3F401F-EVB is the same like this.
① SW1 ON: This Port (P0.0~P0.7) is connected to each segment of 7-segment.
② SW2 ON: This Port (P1.9~P1.12) is connected to latch.
③ U3: 7-segment display
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