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Initial states after reset, 1 miscellaneous registers, 2 digital i/o – Sensoray 626 User Manual

Page 10: 3 counters, Sensoray model 626 instruction manual 8

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Sensoray Model 626 Instruction Manual

8

8. Initial States After Reset

8.1 Miscellaneous

Registers

Table 1 MISC1 & MISC2 Registers Initial States

Register or I/O

State

See

Page

Watchdog oscillator

Oscillator 1 is selected.

Watchdog Disabled
MISC1 Write Enable

Disabled.

Watchdog period

1

/

8

th

second

EDCAP 0

Watchdog/Miscellaneous Registers

23

8.2 Digital

I/O

Table 2 Digital I/O Initial States

Register or I/O

State

See

Page

Digital I/O 0-7

All inputs. (pull up resistors enabled)

Digital I/O 8-47

Indeterminate (will depend on the inputs during reset)

Digital I/O 0-5

Will work as digital inputs not counter overflows

Digital I/O

9

EDGSEL
INTSEL
CAPSEL

Cleared

8.3 Counters

If there is a charged external battery connected to the system, then most of the functionality of the
counters is held through a reset/power failure. The interrupts are disabled to allow the system time to get
back up and running.

Table 3 Counter Initial States

Register or I/O

State

See

Page

Counter input selection
Edge detection
Multiplier
Clear Counter B
Pre-load trigger
Pre-load registers

Unchanged

Counters 14