MCIMX35_10 Datasheet, PDF (122/148 Pages) Freescale Semiconductor, Inc – i.MX35 Applications Processors for Industrial and Consumer Products

Table 78. SSI Receiver with External Clock Timing Parameters (continued)
ID
Parameter
Min.
Max.
Unit
SS25
SS26
SS28
SS30
SS32
SS34
SS35
SS36
SS40
SS41
(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
36.0
—
ns
—
6.0
ns
–10.0
15.0
ns
10.0
—
ns
–10.0
15.0
ns
10.0
—
ns
—
6.0
ns
—
6.0
ns
10.0
—
ns
2.0
—
ns
4.9.23 UART Electrical
This section describes the electrical information of the UART module.
4.9.23.1 UART RS-232 Serial Mode Timing
The following subsections give the UART transmit and receive timings in RS-232 serial mode.
4.9.23.1.11 UART Transmitter
Figure 97 depicts the transmit timing of UART in RS-232 serial mode, with 8 data bit/1 stop bit format.
Table 79 lists the UART RS-232 serial mode transmit timing characteristics.
TXD
(output)
UA1
Start
Bit
Bit 0
Bit 1
Bit 2
UA1
Bit 3 Bit 4
Bit 5
Possible
Parity
Bit
Bit 6 Bit 7 Par Bit ^STOP
BIT
Next
Start
Bit
UA1 UA1
Figure 97. UART RS-232 Serial Mode Transmit Timing Diagram
i.MX35 Applications Processors for Automotive Products, Rev. 8
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