AT91CAP7E-NA-ZJ Atmel, AT91CAP7E-NA-ZJ Datasheet - Page 372
![MCU CAP7 FPGA 225LFBGA](/photos/12/32/123241/225-lfbga_sml.jpg)
AT91CAP7E-NA-ZJ
Manufacturer Part Number
AT91CAP7E-NA-ZJ
Description
MCU CAP7 FPGA 225LFBGA
Manufacturer
Atmel
Series
CAP™r
Specifications of AT91CAP7E-NA-ZJ
Core Processor
ARM7
Core Size
16/32-Bit
Speed
80MHz
Connectivity
EBI/EMI, FPGA, IrDA, SPI, UART/USART, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
256KB (256K x 8)
Program Memory Type
ROM
Ram Size
160K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
225-LFBGA
Processor Series
AT91Mx
Core
ARM7TDMI
Data Bus Width
32 bit
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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29.6.5.1
Figure 29-34. IrDA Modulation
29.6.5.2
372
AT91CAP7E
IrDA Modulation
IrDA Baud Rate
For baud rates up to and including 115.2 Kbits/sec, the RZI modulation scheme is used. “0” is
represented by a light pulse of 3/16th of a bit time. Some examples of signal pulse duration are
shown in
Table 29-9.
Figure 29-34
Table 29-10
the requirement on the maximum acceptable error of ±1.87% must be met.
Table 29-10. IrDA Baud Rate Error
Transmitter
Baud Rate
2.4 Kb/s
9.6 Kb/s
19.2 Kb/s
38.4 Kb/s
57.6 Kb/s
115.2 Kb/s
Peripheral Clock
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
Output
TXD
Table
gives some examples of CD values, baud rate error and pulse duration. Note that
shows an example of character transmission.
Bit Period
IrDA Pulse Duration
Start
29-9.
Bit
0
1
Baud Rate
115 200
115 200
115 200
115 200
57 600
57 600
57 600
57 600
38 400
38 400
0
1
Data Bits
0
0
78.13 μs
19.53 μs
Pulse Duration (3/16)
9.77 μs
4.88 μs
3.26 μs
1.63 μs
CD
11
18
22
22
36
43
33
2
4
6
1
1
16
Baud Rate Error
3
0
Bit Period
0.00%
1.38%
1.25%
1.38%
0.00%
1.38%
1.25%
0.93%
0.00%
1.38%
Stop
Bit
1
Pulse Time
8549A–CAP–10/08
1.63
1.63
1.63
1.63
3.26
3.26
3.26
3.26
4.88
4.88
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