STM32F042F4 datasheet(87/117 Pages) STMICROELECTRONICS

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STM32F042x4 STM32F042x6

Electrical characteristics

Figure 31. I2S slave timing diagram (Philips protocol)

1. Measurement points are done at CMOS levels: 0.3 × VDDIOx and 0.7 × VDDIOx.

2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first

byte.

tsu(SD_MR)

Data input setup time

Master receiver

tsu(SD_SR)

Slave receiver

th(SD_MR)(2)

Data input hold time

Master receiver

th(SD_SR)(2)

Slave receiver

0.5

tv(SD_MT)(2)

Data output valid time

Master transmitter

tv(SD_ST)(2)

Slave transmitter

th(SD_MT)

Data output hold time

Master transmitter

th(SD_ST)

Slave transmitter

1. Data based on design simulation and/or characterization results, not tested in production.

2. Depends on fPCLK. For example, if fPCLK = 8 MHz, then TPCLK = 1/fPLCLK = 125 ns.

Table 64. I2S characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Max

Unit

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