MCIMX353CJQ5C Freescale, MCIMX353CJQ5C Datasheet - Page 123

• Manufacturer Part Number: MCIMX353CJQ5C
• Manufacturer: Freescale

Specifications of MCIMX353CJQ5C

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

1
2
4.9.23.2.14 UART IrDA Mode Receiver
Figure 100
the receive timing characteristics.
1
2
4.9.24
In order to support four different serial interfaces, the USB serial transceiver can be configured to operate
in one of four modes:
Freescale Semiconductor
F
T
exceed 3/(16 × F
F
The UART receiver can tolerate 1/(16 × F
ref_clk
baud_rate
baud_rate
(input)
UA3
UA4
UA5
UA6
RXD
•
•
•
•
ID
ID
: The period of UART reference clock ref_clk ( ipg_perclk after RFDIV divider).
DAT_SE0 bidirectional, 3-wire mode
DAT_SE0 unidirectional, 6-wire mode
VP_VM bidirectional, 4-wire mode
VP_VM unidirectional, 6-wire mode
: Baud rate frequency. The maximum baud rate the UART can support is ( ipg_perclk frequency)/16.
: Baud rate frequency. The maximum baud rate the UART can support is ( ipg_perclk frequency) ÷ 16.
depicts the UART IrDA mode receive timing, with 8 data bit/1 stop bit format.
Receive bit time
Receive IR pulse duration
USB Electrical Specifications
Start
Bit
baud_rate
UA5
Transmit bit time in IrDA mode
i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 9
Transmit IR pulse duration
Bit 0
).
1
Parameter
Parameter
Figure 100. UART IrDA Mode Receive Timing Diagram
in IrDA mode
Table 81. IrDA Mode Transmit Timing Parameters
Table 82. IrDA Mode Receive Timing Parameters
Bit 1
baud_rate
Bit 2
UA5
) tolerance in each bit. But accumulation tolerance in one frame must not
Bit 3
Symbol
t
Symbol
t
TIRpulse
RIRpulse
t
t
TIRbit
RIRbit
Bit 4
(3/16) × (1/F
1/(16 × F
1/F
1/F
UA6
baud_rate
– T
Bit 5
1.41 us
baud_rate
T
ref_clk
Min.
Min.
ref_clk
baud_rate
baud_rate
2
2
1
Bit 6
–
–
)
)
(5/16) × (1/F
(3/16) × (1/F
1/F
1/(16 × F
1/F
Bit 7
baud_rate
baud_rate
+ T
UA5
Max.
Max.
ref_clk
baud_rate
baud_rate
Possible
baud_rate
+ T
Parity
Table 82
Bit
+
ref_clk
UA5
)
)
)
STOP
Units
Units
BIT
lists
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—
—
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