r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 376

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
18.2.19 Timer RE2 Alarm Minute Register (TREAMN)
TRECR register
RTCRST bit in
Bits AMN0 to AMN3 (First digit of minute alarm data bits)
Bits AMN4 to AMN6 (Second digit of minute alarm data bits)
After reset by
Bit
b0
b1
b2
b3
b4
b5
b6
b7
After Reset
The TREAMN register is used in real-time clock mode.
Write to this register when the BSY bit in the TRESEC register is 0 (data not being updated).
The TREAMN register is compared with the TREMIN register when the ENBMN bit is 1 (minute alarm
enabled). If the values of both the registers match, the ALIF bit in the TREIFR register is set to 1 (interrupt
requested). When the ALIE bit in the TREIFR register is 1 (alarm interrupt enabled), an interrupt request is
generated.
Set values from 00 to 59 by the BCD code.
If any value other than the above is set, normal operation cannot be performed.
Address 0017Ch
Symbol ENBMN
ENBMN Minute alarm enable bit
Symbol
AMN0
AMN1
AMN2
AMN3
AMN4
AMN5
AMN6
Bit
Preliminary document
Specifications in this document are tentative and subject to change.
Second digit of minute alarm data
First digit of minute alarm data bits Store the alarm data.
bits
b7
0
0
AMN6
b6
Bit Name
0
0
AMN5
b5
0
0
AMN4
b4
0
0
Store the alarm data.
1: Minute alarm enabled
0: Minute alarm disabled
(not compared with the TREMIN register)
(compared with the TREMIN register)
AMN3
b3
0
0
Function
AMN2
b2
0
0
AMN1
b1
0
0
0 to 9 (BCD code)
0 to 5 (BCD code)
Setting Range
AMN0
b0
0
0
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18. Timer RE2
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W