DP is the decimal point at the right of each 7 segment digit
  CL is a colon sign (:) between the 2 couple of seven segment digits (ex. 01:02)
  
      A                    ROW0 - A    - 00000001(0X01)
     ___            CL     ROW1 - B,CL - 00000010(0X02)
    |   |           .      ROW2 - C    - 00000100(0X04)
  F | G | B                ROW3 - D    - 00001000(0X08)
    |---|                  ROW4 - E    - 00010000(0X10)
  E |   | C         .      ROW5 - F    - 00100000(0X20)
    |___|   . DP           ROW6 - G    - 01000000(0X40)
                           ROW7 - DP   - 10000000(0X80)
      D                                   
                                         dGFEDCBA (d is alias for DP: decimal point)

                           COM0 - selects the first display digit
                           COM1 - selects the second display digit
                           COM2 - selects the colon sign between the two couple of digits
                           COM3 - selects the third display digit
                           COM4 - selects the fourth display digit

0: ABCDEF: ROWS(0,1,2,3,4,5) (0x3F)   8: ABCDEFG: ROWS(0,1,2,3,4,5,6) (0x7F)
1: BC: ROWS(1,2)             (0x06)   9: ABCDFG: ROWS(0,1,2,3,5,6)    (0x6F)
2: ABDEG: ROWS(0,1,3,4,6)    (0x5B)   A: ABCEFG: ROWS(0,1,2,4,5,6)    (0x77)
3: ABCDG: ROWS(0,1,2,3,6)    (0x4F)   b: CDEFG: ROWS(2,3,4,5,6)       (0x7C)
4: BCFG: ROWS(1,2,5,6)       (0x66)   C: ADEF: ROWS(0,3,4,5)          (0x39)
5: ACDFG: ROWS(0,2,3,5,6)    (0x6D)   d: BCDEG: ROWS(1,2,3,4,6)       (0x5E)
6: ACDEFG: ROWS(0,2,3,4,5,6) (0x7D)   E: ADEFG: ROWS(0,3,4,5,6)       (0x79)
7: ABC: ROWS(0,1,2)          (0x07)   F: AEFG: ROWS(0,4,5,6)          (0x71)

c: DEG    (0x58)   L: DEF    (0x38)   y: BCDFG (0x6E)
h: CEFG   (0x74)   o: CDEG   (0x5C)
H: BCEFG  (0x76)   P: ABEFG  (0x73)
i: E      (0x10)   T: DEFG   (0x78)
I: EF     (0x30)   u: CDE    (0x1C)
J: BCDE   (0x1E)   U: BCDEF  (0x3E)