SMJ320F240 Datasheet, PDF (78/99 Pages) Texas Instruments – DSP CONTROLLER

SMJ320F240
DSP CONTROLLER
SGUS029 – APRIL 1999
serial communications interface (SCI) I/O timings
timing characteristics for SCI (see Note 4 and Figure 41)
PARAMETER
tc(SCC)
Cycle time, SCICLK
tv(TXD)
Valid time, SCITXD data
tv(RXD)
Valid time, SCIRXD data
NOTE 4: tc = system clock cycle time = 1/SYSCLK = tc(SYS)
(BRR + 1)
IS EVEN AND BRR = 0
MIN
MAX
(BRR + 1)
IS ODD AND BRR ≠ 0
MIN
MAX
UNIT
16tc
65 536tc
24tc
65 535tc ns
tc(SCC) – 70 tc(SCC) + 70 tc(SCC) – 70 tc(SCC) + 70 ns
16tc
24tc
ns
tv(TXD)
SCITXD
SCIRXD
Data Valid
tv(RXD)
Data Valid
Figure 41. SCI Timings
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