ATAM862P-TNQY8D Atmel, ATAM862P-TNQY8D Datasheet - Page 55

• Manufacturer Part Number: ATAM862P-TNQY8D
• Description: IC MCU FLASH 4K TX 868MHZ 24SSOP
• Manufacturer: Atmel

Specifications of ATAM862P-TNQY8D

• 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

22.12.3
22.12.4
4590G–4BMCU–06/07
Duty Cycle Generator
Timer 2 Mode Register 2 (T2M2)
Table 22-9.
The duty cycle generator generates duty cycles of 25%, 33% or 50%. The frequency at the duty
cycle generator output depends on the duty cycle and the Timer 2 prescaler setting. The
DCG-stage can also be used as additional programmable prescaler for Timer 2.
Figure 22-22. DCG Output Signals
T2TOP
T2OS2
T2OS1
T2OS0
Mode
T2TOP
1
2
3
4
Bit 3
T2MS1
DCGO0
DCGO1
DCGO2
DCGO3
DCGIN
1
1
0
0
Timer 2 Toggle Output Preset
This bit allows the programmer to preset the Timer 2 output T2O.
T2TOP = 0, resets the toggle outputs with the write cycle (M2 = 0)
T2TOP = 1, sets toggle outputs with the write cycle (M2 = 1)
Note: If T2R = 1, no output preset is possible
Timer 2 Output Select bit 2
Timer 2 Output Select bit 1
Timer 2 Output Select bit 0
T2OS2
Bit 2
Timer 2 Mode Select Bits
T2MS0 Clock Output (POUT)
1
0
1
0
T2OS1
Bit 1
4-bit counter overflow (OVF1)
4-bit compare output (CM1)
4-bit compare output (CM1)
4-bit compare output (CM1)
T2OS0
Bit 0
Address: "7"hex - Subaddress: "2"hex
Timer 2 Modes
12-bit compare counter; the DCG has to
be bypassed in this mode
8-bit compare counter with 4-bit
programmable prescaler and duty cycle
generator
8-bit compare counter clocked by SYSCL
or the external clock input T2I, 4-bit
prescaler run, the counter 2/1 starts after
writing mode 3
8-bit compare counter clocked by SYSCL
or the external clock input T2I, 4-bit
prescaler stop and resets
Reset value: 1111b
ATAM862-8
55