T48C862M-R3-TNS Atmel, T48C862M-R3-TNS Datasheet - Page 61

• Manufacturer Part Number: T48C862M-R3-TNS
• Description: IC MON TIRE PRESS 315MHZ 24SOIC
• Manufacturer: Atmel

Specifications of T48C862M-R3-TNS

• Frequency: 315MHz
• Modulation Or Protocol: FM, FSK
• Data Rate - Maximum: 32 kBaud
• Power - Output: 10dBm
• Current - Transmitting: 9.5mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Memory Size: 1KB EEPROM, 1KB RAM
• Voltage - Supply: 2 V ~ 4 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 24-SOIC (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Applications: -

Timer 3 – Mode 12:
Timer/Counter with External
Capture Mode (T3I)
Timer 3 Modulator for
Carrier Frequency Burst
Modulation
Timer 3 Demodulator for
Biphase, Manchester and
Pulse-width-modulated
Signals
4554A–4BMCU–02/03
The counter is driven by an internal clock source and an edge at the external input T3I
loads the counter value into the capture register. The edge can be selected with the pro-
grammable edge detector of the timer input stage. This mode can be used for signal and
pulse measurements.
Figure 61. External Capture Mode
If the output stage operates as pulse-width modulator for the shift register, the output
can be stopped with stage 1 of Timer 2. For this task, the timer mode 3 must be used
and the prescaler must be supplied by the internal shift clock of the shift register.
The modulator can be started with the start of the shift register (SIR = 0) and stopped
either by a shift register stop (SIR = 1) or compare match event of stage 1 of Timer 2.
For this task, the Timer 2 must be used in mode 3 and the prescaler stage must be sup-
plied by the internal shift clock of the shift register.
Figure 62. Modulator 3
The demodulator stage of Timer 3 can be used to decode Biphase, Manchester and
pulse-width-coded signals.
Figure 63. Timer 3 Demodulator 3
Counter 3
Register
T3CP-
Control
T3R
TOG3
T3I
SSI/
M2
SO
0
0 1 2 3 4 5 6 7 8 9 1011
Set Res
T3TOP
T3
Capture value = X
T3I
M3
OMSK
121314 16
T3EX
0
1
3
2
15
MUX
T3M
171819
CM31
Demodulator 3
Counter 3
Control
20
T3M
21 23
T3O
22
Counter 3
Reset
Capture value = 17
Res
242526
Timer 3 Mode
27
SCI
SI
28 30
29
T48C862-R3
other MUX 0
313233
6 MUX 1
7 MUX 2
9 MUX 3
34
35 37
T3O
36
value = 35
Capture
383940
41
61