Day Of The Week Register (Dowr) - Fujitsu F2MC-8FX Hardware Manual

27.3.10

Day of the Week Register (DOWR)

The Day of the Week Register is used to hold the day of the week information.
Day of the Week Register (DOWR)
DOWR (Real time clock day of the week register)
Address
0FF9
* R/W : Readable and writable, - : Unused, X : Indeterminate
R0/WX : Read 0 and write has no effect on operation
This register holds the updated day of the week value in binary form. During reading the current value in
day of the week counter is read. The most significant 5 bits read as "00000". In order to have proper
operation, day of the week value must be adequately set between 00H (000B or Sunday) and 06H (110B or
Saturday) inclusive. please note that only the latched value (not the value being continuously updated in the
counters) is read from register while RTCCRL:CL is equal to "1".
Figure 27.3-11 Day of the Week Register (DOWR)
Bit 7 Bit 6 Bit 5
-
- -
H
R0/WX R0/WX R0/WX R0/WX R0/WX
Bit 4 Bit 3 Bit 2 Bit 1
-
-
DOW2 DOW1 DOW0
R/W R/W
CHAPTER 27 REAL TIME CLOCK
Bit 0 Initial value
00000XXX
B
R/W
503