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Chapter 11
RTC Time Base Timer (RTC-TBT)
11.2.1
RTC-TBT Control Register
RTC-TBT Control Register 0 (TBTCNT0: 0x03EEA)
bp
Bit name TBTCLKSEL
At reset
Access
R/W
bp
Bit name
7
TBTCLKSEL
6-5
ADJCNT1-0
4
3
TBTIRQEN
TBTIRQSEL
2-0
XI - 4
Control Register
7
6
ADJCNT1-0
0
0
R/W
R/W
Clock source select for RTC-TBT
0: SOSCCLK
1: SRCCLK
Adjustment period select for RTC-TBT
00: 128 sec
01: 32 sec
10:
8 sec
11:
2 sec
-
Always read as 0.
Interrupt enable for RTC-TBT
0: Disable
1: Enable
Interrupt cycle select for RTC-TBT
000: 128 Hz
001: 64 Hz
010: 32 Hz
011: 16 Hz
2-0
100:
8 Hz
101:
4 Hz
110:
2 Hz
111:
1 Hz
5
4
-
TBTIRQEN
0
0
R/W
R/W
Description
3
2
TBTIRQSEL2-0
0
0
R/W
R/W
1
0
0
0
R/W
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