MCIMX357CJM5B Freescale, MCIMX357CJM5B Datasheet - Page 120

• Manufacturer Part Number: MCIMX357CJM5B
• Manufacturer: Freescale

Specifications of MCIMX357CJM5B

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

4.9.23
This section describes the electrical information of the UART module.
4.9.23.1
The following subsections give the UART transmit and receive timings in RS-232 serial mode.
4.9.23.1.11 UART Transmitter
Figure 97
Table 78
120
SS25
SS26
SS28
SS30
SS32
SS34
SS35
SS36
SS40
SS41
(output)
ID
TXD
lists the UART RS-232 serial mode transmit timing characteristics.
depicts the transmit timing of UART in RS-232 serial mode, with 8 data bit/1 stop bit format.
(Tx/Rx) CK clock low period
(Tx/Rx) CK clock fall time
(Rx) CK high to FS (bl) high
(Rx) CK high to FS (bl) low
(Rx) CK high to FS (wl) high
(Rx) CK high to FS (wl) low
(Tx/Rx) External FS rise time
(Tx/Rx) External FS fall time
SRXD setup time before (Rx) CK low
SRXD hold time after (Rx) CK low
UART Electrical
UART RS-232 Serial Mode Timing
Table 77. SSI Receiver with External Clock Timing Parameters (continued)
Start
UA1
Bit
i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 8
Figure 97. UART RS-232 Serial Mode Transmit Timing Diagram
Bit 0
Bit 1
Bit 2
Parameter
Bit 3
UA1
Bit 4
Bit 5
Bit 6
Bit 7
Possible
–10.0
–10.0
Min.
36.0
10.0
10.0
10.0
Par Bit
Parity
2.0
UA1
—
—
—
Bit
STOP
Freescale Semiconductor
UA1
BIT
Max.
15.0
15.0
6.0
6.0
6.0
—
—
—
—
—
Start
Next
Bit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns