TDA8029C2 PHILIPS [NXP Semiconductors], TDA8029C2 Datasheet - Page 17
TDA8029C2
Manufacturer Part Number
TDA8029C2
Description
Low power single card reader
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet
1.TDA8029C2.pdf
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Philips Semiconductors
Summary of baud rate equations: Timer 2 is in baud rate
generating mode. If timer 2 is being clocked through T2
(P1.0) the baud rate is:
If timer 2 is being clocked internally, the baud rate is:
2003 Oct 30
handbook, full pagewidth
Baud rate
Low power single card reader
OSC
Baud rate
T2EX
=
----------------------------------------------------------------------------------------------- -
32
T2
transition
÷
detector
=
2
65536
Timer 2 overflow rate
------------------------------------------------------- -
Oscillator frequency
C/T2 = 0
C/T2 = 1
note f osc is divided by 2, not 12
–
RCAP2H, RCAP2L
Note availability of additional external interrupt
EXEN2
16
control
Fig.5 Timer 2 in baud rate generator mode.
TR2
control
EXF2
RCAP2L
Timer 2
interrupt
(8-bit)
(3)
(4)
TL2
17
To obtain the reload value for RCAP2H and RCAP2L, the
above equation can be rewritten as:
Where f
RCAP2H
(8-bit)
TH2
RCAP2H, RCAP2L
osc
reload
= oscillator frequency.
1
1
÷
=
2
0
overflow
Timer 1
0
0
65536
1
–
÷
÷
------------------------------------- -
32 baud rate
16
16
Product specification
RCLK
TCLK
SMOD
TDA8029
f
MGW425
osc
RX clock
TX clock
(5)
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