AT94K05AL-25BQX Atmel, AT94K05AL-25BQX Datasheet - Page 93
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AT94K05AL-25BQX
Manufacturer Part Number
AT94K05AL-25BQX
Description
Manufacturer
Atmel
Datasheet
1.AT94K05AL-25BQX.pdf
(204 pages)
Specifications of AT94K05AL-25BQX
Device System Gates
5000
Propagation Delay Time
12.1ns
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Operating Temperature Classification
Commercial
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Mounting
Surface Mount
Pin Count
144
Package Type
LQFP
Lead Free Status / RoHS Status
Compliant
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1138I–FPSLI–1/08
• Bit 6 - PWM0/PWM2: Pulse Width Modulator Enable
When set (one) this bit enables PWM mode for Timer/Counter0 or Timer/Counter2. This mode is
described on
• Bits 5,4 - COM01, COM00/COM21, COM20: Compare Output Mode, Bits 1 and 0
The COMn1 and COMn0 control bits determine any output pin action following a compare match
in Timer/Counter0 or Timer/Counter2. Output pin actions affect pins PE1(OC0) or PE3(OC2).
This is an alternative function to an I/O port, and the corresponding direction control bit must be
set (one) to control an output pin. The control configuration is shown in
Table 1. Compare Output Mode Select
Notes:
• Bit 3 - CTC0/CTC2: Clear Timer/Counter on Compare Match
When the CTC0 or CTC2 control bit is set (one), Timer/Counter0 or Timer/Counter2 is reset to
$00 in the CPU clock-cycle after a compare match. If the control bit is cleared, Timer/Counter
continues counting and is unaffected by a compare match. When a prescaling of 1 is used, and
the compare register is set to C, the timer will count as follows if CTC0/CTC2 is set:
... | C-1 | C | 0 | 1 | ...
When the prescaler is set to divide by 8, the timer will count like this:
... | C-1, C-1, C-1, C-1, C-1, C-1, C-1, C-1 | C, C, C, C, C, C, C, C | 0, 0, 0, 0, 0, 0, 0, 0 | 1, 1, 1, ...
In PWM mode, this bit has a different function. If the CTC0 or CTC2 bit is cleared in PWM mode,
the Timer/Counter acts as an up/down counter. If the CTC0 or CTC2 bit is set (one), the
Timer/Counter wraps when it reaches $FF. Refer to
• Bits 2,1,0 - CS02, CS01, CS00/ CS22, CS21, CS20: Clock Select Bits 2,1 and 0
The Clock Select bits 2,1 and 0 define the prescaling source of Timer/Counter0 and
Timer/Counter2, see
COMn1
1. In PWM mode, these bits have a different function. Refer to
2. n = 0 or 2
0
0
1
1
description.
page
95.
Table 4-13
COMn0
0
1
0
1
and
Table
Description
Timer/Counter disconnected from output pin OCn
Toggles the OCn
Clears the OCn
Sets the OCn
(1)
4-14.
AT94KAL Series FPSLIC
(2)
page 95
(2)
output line (to one).
(2)
output line (to zero).
output line.
for a detailed description.
Table 4-15
Table
for a detailed
1.
(2)
93
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