ATAM862P-TNSY4D Atmel, ATAM862P-TNSY4D Datasheet - Page 53

• Manufacturer Part Number: ATAM862P-TNSY4D
• Description: IC MCU FLASH 4K TX 433MHZ 24SSOP
• Manufacturer: Atmel

Specifications of ATAM862P-TNSY4D

• Applications: UHF ASK/FSK
• Core Processor: MARC4
• Program Memory Type: FLASH (4 kB)
• Controller Series: MARC4 4-Bit
• Ram Size: 256 x 4
• Interface: SSI
• Number Of I /o: 11
• Voltage - Supply: 1.8 V ~ 4 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Processor Series: ATAM862x
• Core: MARC4
• Data Bus Width: 4 bit
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22.11.5
22.11.6
22.12 Timer 2 Registers
4551G–4BMCU–07/07
Timer 2 Output Mode 5
Timer 2 Output Mode 7
Manchester Modulator: Timer 2 modulates the SSI internal data output (SO) to Manchester
code
Figure 22-20. Manchester Modulation
In this mode the timer overflow defines the period and the compare register defines the duty
cycle. During one period only the first compare match occurrence is used to toggle the timer out-
put flip-flop, until the overflow all further compare match are ignored. This avoids the situation
that changing the compare register causes the occurrence of several compare match during one
period. The resolution at the pulse-width modulation Timer 2 mode 1 is 12-bit and all other
Timer 2 modes are 8-bit.
PWM Mode: Pulse-width modulation output on Timer 2 output pin (T2O)
Figure 22-21. PWM Modulation
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.
Input clock
Counter 2/2
Counter 2/2
OVF2
INT4
CM2
T2O
T2R
TOG2
T2O
SC
SO
0
Data: 00110101
Bit 7
Bit 7
0
0
T1
0
50
compare value
load the next
0
T
0
255
1
0
1
T2
100
1
T2CO2=150
1
8-bit SR-Data
T
255 0
0
0
T3
1
150
1
T
load
255 0 50
0
T1
0
load
1
ATAM862-4
T
Bit 0
Bit 0
1
255 0
T2
100
T
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