Time register – Digi NS9215 User Manual

Page 462

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R E A L T I M E C L O C K M O D U L E

Time register

462

Hardware Reference NS9215

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T i m e r e g i s t e r

Address: 9006 0008

The TIme register sets the time values to the correct values, and reads the time
registers. BCD is binary coded decimal.

Register

Register bit
assignment

13

12

11

10

9

8

7

6

5

4

3

2

1

0

15

14

31

29

28

27

26

25

24

23

22

21

20

19

18

17

16

30

Rsvd

Rsvd

Rsvd

PM

HR_T

HR_U

M_T

M_U

S_T

S_U

H_T

H_U

Bits

Access

Mnemonic

Reset

Description

D31

N/A

Reserved

N/A

N/A

D30

R/W

PM

0x0

PM

Used in 12 hour mode only.
0

AM

1

PM

D29:28

R/W

HR_T

0x0

Hours, tens, BCD digit (0-2)

D27:24

R/W

HR_U

0x0

Hours, units, BCD digit (0-9)

D23

N/A

Reserved

N/A

N/A

D22:20

R/W

M_T

0x0

Minutes, tens, BCD digit (0-5)

D19:16

R/W

M_U

0x0

Minutes, units, BCD digit (0-9)

D15

N/A

Reserved

N/A

N/A

D14:12

R/W

S_T

0x0

Seconds, tens, BCD digit (0-5)

D11:08

R/W

S_U

0x0

Seconds, units, BCD digit (0-9)

D07:04

R/W

H_T

0x0

Hundredths of a second, tens, BCD digit (0-9)

D03:00

R/W

H_U

0x0

Hundredths of a second, units, BCD digit (0-9)

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