AT87F55WD ATMEL [ATMEL Corporation], AT87F55WD Datasheet - Page 11
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AT87F55WD
Manufacturer Part Number
AT87F55WD
Description
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT87F55WD.pdf
(26 pages)
- Current page: 11 of 26
- Download datasheet (235Kb)
Figure 7. Timer 2 Auto Reload Mode (DCEN = 1)
Figure 8. Timer 2 in Baud Rate Generator Mode
T2EX PIN
OSC
OSC
T2 PIN
T2 PIN
12
÷
2
TRANSITION
DETECTOR
NOTE: OSC. FREQ. IS DIVIDED BY 2, NOT 12
C/T2 = 0
C/T2 = 1
C/T2 = 0
C/T2 = 1
TR2
EXEN2
CONTROL
TR2
(DOWN COUNTING RELOAD VALUE)
CONTROL
CONTROL
(UP COUNTING RELOAD VALUE)
RCAP2H
0FFH
TH2
RCAP2H
TH2
EXF2
RCAP2L
0FFH
RCAP2L
TL2
TL2
OVERFLOW
INTERRUPT
TIMER 2
T2EX PIN
÷
2
"1"
"1"
TIMER 1 OVERFLOW
COUNT
DIRECTION
1=UP
0=DO
"0"
"0"
"0"
TOGGLE
"1"
INTERRUPT
TIMER 2
÷
÷
SMOD1
RCLK
TCLK
16
TF2
16
CLOCK
CLOCK
EXF2
Rx
Tx
11
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