ATA5773-DK1 Atmel, ATA5773-DK1 Datasheet - Page 91

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ATA5773-DK1

Manufacturer Part Number
ATA5773-DK1
Description
BOARD XMITTER FOR ATA5773 315MHZ
Manufacturer
Atmel
Type
Transmitterr
Datasheets

Specifications of ATA5773-DK1

Frequency
315MHz
Maximum Frequency
315 MHz
Supply Voltage (max)
4 V
Supply Voltage (min)
2 V
Supply Current
9 mA
Product
RF Development Tools
For Use With/related Products
ATA5773
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
4.15.9.2
9137E–RKE–12/10
TCCR0B – Timer/Counter Control Register B
• Bit 7 – FOC0A: Force Output Compare A
The FOC0A bit is only active when the WGM bits specify a non-PWM mode.
However, for ensuring compatibility with future devices, this bit must be set to zero when
TCCR0B is written when operating in PWM mode. When writing a logical one to the FOC0A
bit, an immediate Compare Match is forced on the Waveform Generation unit. The OC0A out-
put is changed according to its COM0A1:0 bits setting. Note that the FOC0A bit is
implemented as a strobe. Therefore it is the value present in the COM0A1:0 bits that deter-
mines the effect of the forced compare.
A FOC0A strobe will not generate any interrupt, nor will it clear the timer in CTC mode using
OCR0A as TOP.
The FOC0A bit is always read as zero.
• Bit 6 – FOC0B: Force Output Compare B
The FOC0B bit is only active when the WGM bits specify a non-PWM mode.
However, for ensuring compatibility with future devices, this bit must be set to zero when
TCCR0B is written when operating in PWM mode. When writing a logical one to the FOC0B
bit, an immediate Compare Match is forced on the Waveform Generation unit. The OC0B out-
put is changed according to its COM0B1:0 bits setting. Note that the FOC0B bit is
implemented as a strobe. Therefore it is the value present in the COM0B1:0 bits that deter-
mines the effect of the forced compare.
A FOC0B strobe will not generate any interrupt, nor will it clear the timer in CTC mode using
OCR0B as TOP.
The FOC0B bit is always read as zero.
• Bits 5:4 – Res: Reserved Bits
These bits are reserved bits in the ATtiny44V and will always read as zero.
• Bit 3 – WGM02: Waveform Generation Mode
See the description in the
page
• Bits 2:0 – CS02:0: Clock Select
The three Clock Select bits select the clock source to be used by the Timer/Counter.
Bit
0x33 (0x55)
Read/Write
Initial Value
88.
FOC0A
W
7
0
FOC0B
W
6
0
Section 4.15.9.1 “TCCR0A – Timer/Counter Control Register A” on
R
5
0
R
4
0
WGM02
R/W
Atmel ATA5771/73/74
3
0
CS02
R/W
2
0
CS01
R/W
1
0
CS00
R/W
0
0
TCCR0B
91

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