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T48C862-R8 Datasheet

  • T48C862-R8

  • MCU

  • Atmel   Atmel

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PWM Mode:
Pulse-width modulation output on Timer 2 output pin (T2O)
Figure 47.
PWM Modulation
Input clock
Counter 2/2
T2R
0
0
50
255 0
100
255 0
150
255 0 50
255 0
100
Counter 2/2
CM2
OVF2
INT4
T2O
T1
T
load the next
compare value
T2CO2=150
load
load
T2
T
T3
T
T1
T
T2
T
Timer 2 Registers
Timer 2 has 6 control registers to configure the timer mode, the time interval, the input
clock and its output function. All registers are indirectly addressed using extended
addressing as described in section "Addressing Peripherals". The alternate functions of
the Ports BP41 or BP42 must be selected with the Port 4 control register P4CR, if one of
the Timer 2 modes require an input at T2I/BP41 or an output at T2O/BP42.
Timer 2 Control Register (T2C)
Bit 3
T2CS1
Bit 2
T2CS0
Bit 1
T2TS
Bit 0
T2R
Address: "7"hex - Subaddress: "0"hex
Reset value: 0000b
T2CS1
T2CS0
T2CS1
0
0
1
1
Timer 2 Clock Select
bit
1
Timer 2 Clock Select
bit
0
T2CS0
0
1
0
1
Input Clock (CL 2/1) of Counter Stage 2/1
System clock (SYSCL)
Output signal of Timer 1 (T1OUT)
Internal shift clock of SSI (SCL)
Output signal of Timer 3 (TOG3)
T2TS
Timer 2 Toggle
with
Start
T2TS = 0, the output flip-flop of Timer 2 is not toggled with the timer start
T2TS = 1, the output flip-flop of Timer 2 is toggled when the timer is started with
T2R
Timer 2 Run
T2R = 0, Timer 2 stop and reset
T2R = 1, Timer 2 run
T2R
50
T48C862-R8
4590B鈥?BMCU鈥?2/03

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