Table 65A - Real Time Clock Address Map, Bank 0
ADDRESS
REGISTER TYPE
REGISTER FUNCTION
0
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
Register 0: Seconds
Register 1: Seconds Alarm 1
Register 2: Minutes
2
3
Register 3: Minutes Alarm 1
Register 4: Hours
4
5
Register 5: Hours Alarm 1
Register 6: Day of Week
Register 7: Date of Month
Register 8: Month
6
7
8
9
Register 9: Year
A
Register A:
B
Register B: (Bit 0 is Read Only)
Register C:
C
D
E-7F
R
Register D:
R/W
Register E-7F: General Purpose
All 14 bytes are directly writeable and readable
by the host with the following exceptions:
a. Registers C and D are read only
b. Bit 7 of Register A is read only
c. Bits 0 of Register B is read only
147
SMSC [ SMSC CORPORATION ]
