t6020m ATMEL Corporation, t6020m Datasheet - Page 47

• Manufacturer Part Number: t6020m
• Description: Low-current Microcontroller For Watchdog Function
• Manufacturer: ATMEL Corporation

Combination mode 1: Burst modulation
SSI mode 1:
Timer 2 mode 1, 2, 3 or 4: 8-bit compare counter with 4-bit programmable prescaler and DCG
Timer 2 output mode 3:
Combination mode 2: Biphase modulation 1
SSI mode 1:
Timer 2 mode 1, 2, 3 or 4: 8-bit compare counter with 4-bit programmable prescaler
Timer 2 output mode 4:
Combination mode 3: Manchester modulation 1
SSI mode 1:
Timer 2 mode 1, 2, 3 or 4: 8-bit compare counter with 4-bit programmable prescaler
Timer 2 output mode 5:
Rev. A3, 02-Apr-01
Counter 2
TOG2
TOG2
DCGO
TOG2
T2O
T2O
SO
T2O
SC
SO
SC
SO
Data: 00110101
Data: 00110101
Bit 0
1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1
Figure 50. Carrier frequency burst modulation with the SSI internal data output
Bit 7
Bit 7
Bit 7
0
0
0
0
Bit 1
8-bit NRZ and internal data SO output to the Timer 2 modulator stage
Duty cycle burst generator
8-bit shift register internal data output (SO) to the Timer 2 modulator stage
The modulator 2 of Timer 2 modulates the SSI internal data output to Biphase code
8-bit shift register internal data output (SO) to the Timer 2 modulator stage
The modulator 2 of Timer 2 modulates the SSI internal data output to Manchester code
0
Bit 2
0
0
0
1
Counter = compare register (=2)
Bit 3
1
Figure 52. Manchester modulation 1
1
1
Figure 51. Biphase modulation 1
Bit 4
1
1
1
1
Bit 5
8-bit SR-data
8-bit SR-data
0
Bit 6
0
0
0
Bit 7
1
1
1
1
Bit 8
0
Bit 9 Bit 10 Bit 11 Bit 12 Bit 13
0
0
0
1
Bit 0
Bit 0
Bit 0
1
1
1
13786
13787
T6020M
13785
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