RX8804CE
Page - 13
ETM59E-05
7) FSEL0, 1 (FOUT frequency Select 0, 1) bits
The combination of these two bits is used to set the FOUT frequency.
Note: All frequencies are temperature compensated!
Table 23 FSEL bit
FSEL0,1
FSEL1
(bit 3)
FSEL0
(bit 2)
FOUT frequency
Write / Read
0
0
32.768
kHz
Output
Default
0
1
1024
Hz
Output
1
0
1
Hz
Output
1
1
32.768
kHz
Output
8) CSEL0, 1 (Compensation interval Select 0, 1) bits
The combination of these two bits is used to set the temperature compensation interval.
Please refer to 8.9. Temperature Compensation Function
9) AF (Alarm Flag) bit
If set to “0” beforehand, this flag bit's value changes from “0” to “1” when an alarm interrupt event has occurred.
Once this flag bit's value is “1”, its value is retained until a “0” is written to it.
Please refer to 8.5. Alarm Interrupt Function.
10) TF (Timer Flag) bit
If set to “0” beforehand, this flag bit's value changes from “0” to “1” when a wakeup timer interrupt event has
occurred. Once this flag bit's value is “1”, its value is retained until a “0” is written to it.
Please refer to 8.6. Wakeup Timer Interrupt Function.
11) UF (Update Flag) bit
If set to “0” beforehand, this flag bit's value changes from “0” to “1” when a time update interrupt event has
occurred. Once this flag bit's value is “1”, its value is retained until a “0” is written to it.
Please refer to 8.7. Time Update Interrupt Function.
12) AIE, TIE, UIE (Alarm, Wakeup Timer, Update Interrupt Enable) bit
In case of Alarm or Wakeup Timer or Update occurs AIE, TIE, UIE bit controls /INT output.
When a “1”
is written to this bit, an interrupt signal is generated (/INT status changes from Hi-Z to low) .
When a “0”
is written to this bit, no interrupt signal is generated.
Please refer to each function.
Table 24 AIE, TIE, UIE bit
Function
condition
Flag
/INT interrupt control
Alarm
Alarm time hit
AF
AIE
Wakeup Timer
Timer Count down to 0
TF
TIE
Update
Minute or Second update
UF
UIE
8.2.5. SOUT Control Register
Table 25 SOUT Control Register
Address
Function
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Read
Write
19
SOUT set1
SOE7
SOE6
SOE5
SOE4
SOE3
SOE2
SOE1
SOE0
1A
SOUT set0
DCE
DC
SRV
FS2
FS1
FS0
1) SOUT set1 register (19h)
By setting 69h =01101001b into SOUT set1 SOUT function becomes activated.
Other data than 69h makes SOUT function non active. Then SOUT becomes Hi-Z.
2) DCE bit ((Direct Control Enable), DC bit (Direct Control)
In case of DCE=1, DC bit Value is outputted at SOUT.
In case of DCE=0, register value Flag value is outputted at SOUT.