SPC58EG80C3 datasheet(85/139 Pages) STMICROELECTRONICS

85 / 139 page

DS11758 Rev 6

85/139

SPC584Gx, SPC58EGx, SPC58NGx

Electrical characteristics

106

4.17.2.1

DSPI master mode full duplex timing with CMOS pads

4.17.2.1.1 DSPI CMOS master mode – classic timing

Note:

In the following table, all output timing is worst case and includes the mismatching of rise

and fall times of the output pads.

Table 46. DSPI channel frequency support

DSPI use mode(1)

Max usable

frequency

(MHz)(2),(3)

CMOS (Master

mode)

Full duplex – Classic timing (Table 47)

DSPI_0, DSPI_3,

DSPI_5, DSPI_7

DSPI_8

DSPI_1, DSPI_2,

DSPI_4, DSPI_6,

DSPI_9

Full duplex – Modified timing (Table 48)

DSPI_0, DSPI_3,

DSPI_5, DSPI_7

DSPI_8

DSPI_1, DSPI_2,

DSPI_4, DSPI_6,

DSPI_9

Output only mode (SCK/SOUT/PCS) (Table 47 and

Table 48)

—30

Output only mode TSB mode (SCK/SOUT/PCS)

—

CMOS (Slave mode Full duplex) (Table 49)—

1. Each DSPI module can be configured to use different pins for the interface. Refer to the device pinout Microsoft Excel file

attached to the IO_Definition document for the available combinations. It is not possible to reach the maximum

performance with every possible combination of pins.

2. Maximum usable frequency can be achieved if used with fastest configuration of the highest drive pads.

3. Maximum usable frequency does not take into account external device propagation delay.

Table 47. DSPI CMOS master classic timing (full duplex and output only)

MTFE = 0, CPHA = 0 or 1

Symbol

C Characteristic

Condition

Value(1)

Unit

Pad drive(2)

Load (CL)Min

Max

1tSCK

CC D SCK cycle time

SCK drive strength

Very strong

25 pF

59.0

—

Strong

50 pF

80.0

—

Medium

50 pF

200.0

—

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