MCIMX6Q4AVT08AC Freescale Semiconductor, MCIMX6Q4AVT08AC Datasheet - Page 135

• Manufacturer Part Number: MCIMX6Q4AVT08AC
• Description: Processors - Application Specialized i.MX6Q
• Manufacturer: Freescale Semiconductor
• Type: Multimedia Applicationsr

Specifications of MCIMX6Q4AVT08AC

• Rohs: yes
• Core: ARM Cortex A9
• Processor Series: i.MX6
• Data Bus Width: 32 bit
• Operating Supply Voltage: 1.05 V to 1.5 V
• Memory Type: L1/L2 Cache, ROM, SRAM

4.11.21.2 UART RS-232 Serial Mode Timing
The following sections describe the electrical information of the UART module in the RS-232 mode.
4.11.21.2.1 UART Transmitter
Figure 100
format.
4.11.21.2.2 UART Receiver
Figure 101
serial mode receive timing characteristics.
1
2
Freescale Semiconductor
UARTx_RX_DATA
1
2
The UART receiver can tolerate 1/(16  F
exceed 3/(16  F
F
UARTx_TX_DATA
UA2
baud_rate
ID
F
T
ref_clk
baud_rate
(input)
UA1
ID
Table 92
(output)
: The period of UART reference clock ref_clk (ipg_perclk after RFDIV divider).
: Baud rate frequency. The maximum baud rate the UART can support is (ipg_perclk frequency)/16.
depicts the transmit timing of UART in the RS-232 serial mode, with 8 data bit/1 stop bit
depicts the RS-232 serial mode receive timing with 8 data bit/1 stop bit format.
: Baud rate frequency. The maximum baud rate the UART can support is (ipg_perclk frequency)/16.
Receive Bit Time
Transmit Bit Time
Parameter
baud_rate
Start
UA2
i.MX 6Dual/6Quad Automotive and Infotainment Applications Processors, Rev. 2
UA1
lists the UART RS-232 serial mode transmit timing characteristics.
Start
Bit
Bit
Figure 100. UART RS-232 Serial Mode Transmit Timing Diagram
Figure 101. UART RS-232 Serial Mode Receive Timing Diagram
Parameter
).
Table 92. RS-232 Serial Mode Transmit Timing Parameters
Bit 0
Bit 0
Table 93. RS-232 Serial Mode Receive Timing Parameters
1
Bit 1
Bit 1
Symbol
t
Rbit
baud_rate
Bit 2
Bit 2
Symbol
) tolerance in each bit. But accumulation tolerance in one frame must not
t
Bit 3
Tbit
UA2
Bit 3
UA1
1/(16  F
1/F
baud_rate
Bit 4
Bit 4
1/F
Min
baud_rate
baud_rate
2
Bit 5
Bit 5
–
Min
)
1
– T
ref_clk
Bit 6
Bit 6
2
Bit 7
Bit 7
1/F
1/(16  F
1/F
baud_rate
Par Bit
Par Bit
baud_rate
UA2
UA1
POSSIBLE
Max
POSSIBLE
Max
PARITY
PARITY
baud_rate
BIT
BIT
Electrical Characteristics
+ T
STOP
STOP
UA2
UA1
BIT
+
BIT
ref_clk
)
Table 93
START
START
NEXT
NEXT
BIT
BIT
Unit
—
Unit
—
lists
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