DS17285E5 查看數據表（PDF） - Maxim Integrated

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DS17285E5

Real-Time Clocks

Maxim Integrated 

Real-Time Clocks

Table 5. Extended Bank Register Bank Definition

Bank 0

DV0 = 0

00h

00h

Timekeeping and Control

0Dh

0Dh

0Eh

0Eh

50 Bytes – User RAM

3Fh

3Fh

40h

40h

41h

42h

43h

44h

45h

46h

47h

48h

49h

4Ah

4Bh

4Ch

4Dh

4Eh

4Fh

64 Bytes – User RAM

50h

51h

52h

53h

54h

55h

56h

57h

58h

59h

5Ah

5Bh

5Ch

5Dh

5Eh

5Fh

7Fh

7Fh

Note: Reserved bits can be written to any value, but always read back as zeros.

Bank 1

DV0 = 1

Timekeeping and Control

50 Bytes – User RAM

Model Number Byte

1st Byte Serial Number

2nd Byte Serial Number

3rd Byte Serial Number

4th Byte Serial Number

5th Byte Serial Number

6th Byte Serial Number

CRC Byte

Century Byte

Date Alarm

Extended Control Register 4A

Extended Control Register 4B

Reserved

Reserved

RTC Address – 2

RTC Address – 3

Extended RAM Address LSB

Extended RAM Address MSB

Reserved

Extended RAM Data Port

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

RTC Write Counter

Reserved

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