Tews Technologies TIP606, User Manual

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TIP606 User Manual Issue 1.3 Page 12 of 15
4.8 Interrupt Vector Register (IVEC)
Bit Symbol Description Access Reset
Value
7:0 8 bit interrupt vector loaded by software. After power up or
reset all bits of this register are reset to ‘0’. R/W
Figure 4-8 : Interrupt Vector Register (IVEC)
4.9 Debounce Time Register (DEBTIME)
Bit Symbol Description Access Reset
Value
7:0 8 bit debounce preload value
The value 0 in this register sets the debounce time to a
minimum of 900µs (default after reset), if the debouncer is
enabled in the Global Control Register. A value of 255 sets
the debounce time to a maximum of 230.4ms. The debounce
time is common for all inputs.
The programmable debounce time can be calculated as
follows:
Debounce time = (
x +1) * 900µs
x : 8 bit preload value in the range from 0 to 255.
R/W
Figure 4-9 : Debounce Time Register (DEBTIME)
The debounce time value can have a tolerance of up to +/-15% of the calculated value. The
debouncer will be enabled by writing ‘1’ to bit 2 of the Global Interrupt Control Register.