PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 216

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

INCA-D
PSB 21473
General Purpose Timer Unit
the interrupt request flag T6IR will be set and bit T6OTL will be toggled. The state of
T6OTL may be output on line T6OUT. This signal has 8 times more transitions than the
signal which is applied to line CAPIN.
A certain deviation of the output frequency is generated by the fact that timer T5 will
count actual time units (e.g. T5 running at 1 MHz will capture the value 64
/100
for a
H
D
10 KHz input signal) while T6OTL will only toggle upon an underflow of T6 (i.e. the
transition from 0000
to FFFF
). In the above mentioned example T6 would count down
H
H
from 64
so the underflow would occur after 101 T6 timing ticks. The actual output
H
frequency then is 79.2 KHz instead of the expected 80 KHz.
This can be solved by activating the Capture Correction (CC = ’1’). If capture correction
is active the content of T5 is decremented by 1 before being captured. The described
deviation is eliminated (in the example T5 would capture 63
/99
and the output
H
D
frequency is 80 KHz).
The underflow signal of timer T6 can furthermore be used to clock one ore more of the
timers of the CAPCOM units, which gives the user the possibility to set compare events
based on a finer resolution than that of the external events. This connection is
accomplished via signal T6OFL.
Data Sheet
216
2003-03-31