参数资料
型号: MCIMX537CVV8C
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 800 MHz, RISC PROCESSOR, PBGA529
封装: 19 X 19 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, TEPBGA-529
文件页数: 39/172页
文件大小: 4562K
代理商: MCIMX537CVV8C
Electrical Characteristics
i.MX53 Applications Processors for Industrial Products, Rev. 3
Freescale Semiconductor
133
Figure 87. UART IrDA Mode Transmit Timing Diagram
4.7.17.3.4
UART IrDA Mode Receiver
Figure 88 depicts the UART IrDA mode receive timing, with 8 data bit/1 stop bit format. Table 90 lists the
receive timing characteristics.
Figure 88. UART IrDA Mode Receive Timing Diagram
Table 89. IrDA Mode Transmit Timing Parameters
ID
Parameter
Symbol
Min
Max
Units
UA3
Transmit Bit Time in IrDA mode
tTIRbit
1/Fbaud_rate
1
Tref_clk
2
1 F
baud_rate: Baud rate frequency. The maximum baud rate the UART can support is (ipg_perclk frequency)/16.
2 T
ref_clk: The period of UART reference clock ref_clk (ipg_perclk after RFDIV divider).
1/Fbaud_rate + Tref_clk
UA4
Transmit IR Pulse Duration
tTIRpulse
(3/16)*(1/Fbaud_rate)
– Tref_clk
(3/16)*(1/Fbaud_rate)+
Tref_clk
Table 90. IrDA Mode Receive Timing Parameters
ID
Parameter
Symbol
Min
Max
Units
UA5
Receive Bit Time1 in IrDA mode
1
The UART receiver can tolerate 1/(16*Fbaud_rate) tolerance in each bit. But accumulation tolerance in one frame must not
exceed 3/(16*Fbaud_rate).
tRIRbit
1/Fbaud_rate
2
1/(16*Fbaud_rate)
2 F
baud_rate: Baud rate frequency. The maximum baud rate the UART can support is (ipg_perclk frequency)/16.
1/Fbaud_rate +
1/(16*Fbaud_rate)
UA6
Receive IR Pulse Duration
tRIRpulse
1.41 us
(5/16)*(1/Fbaud_rate)—
Bit 1
Bit 2
Bit 0
Bit 4
Bit 5
Bit 6
Bit 7
TXD
(output)
Bit 3
Start
Bit
STOP
BIT
Possible
Parity
Bit
UA3
UA4
Bit 1
Bit 2
Bit 0
Bit 4
Bit 5
Bit 6
Bit 7
RXD
(input)
Bit 3
Start
Bit
STOP
BIT
Possible
Parity
Bit
UA5
UA6
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