Minute Register (Minr) - Fujitsu F2MC-8FX Hardware Manual

27.3.8

Minute Register (MINR)

The Minute Register is used to hold the minute information.
Minute Register (MINR)
MINR (Real time clock minute register)
Address
0FF7
* R/W : Readable and writable, - : Unused, X : Indeterminate
R0/WX : Read 0 and write has no effect on operation
This register holds the updated minute value in binary form. During reading the current value in minute
counter is read. The most significant 2 bits read as "00". In order to have proper operation, minute value
must be adequately set between 00H (000000B or 0 minute) and 3BH (111011B or 59 minute) 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 27.3-9 Minute Register (MINR)
Bit 7 Bit 6 Bit 5
- -
MIN5
H
R0/WX R0/WX R/W
Bit 4 Bit 3 Bit 2 Bit 1
MIN4 MIN3 MIN2 MIN1
R/W R/W R/W R/W
CHAPTER 27 REAL TIME CLOCK
Bit 0 Initial value
MIN0 00XXXXXX
B
R/W
501