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71M6545/71M6545H Data Sheet
Table 54: TMUX2[4:0] Selections
TMUX2[4:0]
0
1
2
3
8
9
A
B
C
E
12
13
14
15
16
17
18
1F
Signal Name
WD_OVF
PULSE_1S
PULSE_4S
RTCLK
SPARE[1] bit – I/O RAM
0x2704[1]
SPARE[2] bit – I/O RAM
0x2704[2]
WAKE
MUX_SYNC
MCK
GNDD
INT0 – DIG I/O
INT1 – DIG I/O
INT2 – CE_PULSE
INT3 – CE_BUSY
INT4 - VSTAT
INT5 – EEPROM/SPI
INT6 – XFER, RTC
RTM_CK (flash)
Description
Indicates when the watchdog timer has expired (overflowed).
One second pulse with 25% Duty Cycle. This signal can be used
to measure the deviation of the RTC from an ideal 1 second
interval. Multiple cycles should be averaged together to filter out
jitter.
Four second pulse with 25% Duty Cycle. This signal can be used
to measure the deviation of the RTC from an ideal 4 second
interval. Multiple cycles should be averaged together to filter out
jitter. The 4 second pulse provides a more precise measurement
than the 1 second pulse.
32.768 kHz clock waveform
Copies the value of the bit stored in 0x2704[1]. For general
purpose use.
Copies the value of the bit stored in 0x2704[2]. For general
purpose use.
Indicates when a WAKE event has occurred.
Internal multiplexer frame SYNC signal. See Figure 4 and Figure
5 .
See 2.5.3 on page 48 .
Digital GND. Use this signal to make the TMUX2OUT pin static.
Interrupt 0. See 2.4.8 on page 38 . Also see Figure 12 on page 45 .
See 2.3.5 on page 26 .
Note:
All TMUX2[4:0] values which are not shown are reserved.
v2
65
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