Day Compare Register (Dycr) - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 27 REAL TIME CLOCK
27.3.5

Day Compare Register (DYCR)

The Day Compare Register is used to perform comparison between day register and
day counter.
Day Compare Register (DYCR)
DYCR (Day compare register)
Address
The value of this register is used to compare with the day counter for detecting alarm condition. In order to
have proper operation, day compare value must be adequately set between 00H (day 1) and 1EH (day 31)
inclusive.
If set CRTCRL:PS to "1", The read value of DYCR is indeterminate.
498
Figure 27.3-6 Day Compare Register
Bit 7 Bit 6
- -
0FF4
H
R0/WX R0/WX R0/WX
R0/WX : Read 0 and write has no effect on operation
R/W : Readable and writable
- : Unused
X : Indeterminate
Bit 5 Bit 4 Bit 3 Bit 2
-
DYC4 DYC3 DYC2
R/W R/W R/W
Bit 1 Bit 0 Initial value
DYC1 DYC0 000XXXXX
B
R/W R/W