STM32F217VG datasheet(118/175 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F21xxx

118/175

DocID17050 Rev 9

Figure 45. ULPI timing diagram

Ethernet characteristics

Table 61 shows the Ethernet operating voltage.

Table 62 gives the list of Ethernet MAC signals for the SMI (station management interface)

and Figure 46 shows the corresponding timing diagram.

Table 60. ULPI timing

Symbol

Parameter

Value(1)

1. VDD = 2.7 V to 3.6 V and TA = –40 to 85 °C.

Unit

Min.

Max.

tSC

Control in (ULPI_DIR) setup time

2.0

Control in (ULPI_NXT) setup time

1.5

tHC

Control in (ULPI_DIR, ULPI_NXT) hold time

tSD

Data in setup time

2.0

tHD

Data in hold time

tDC

Control out (ULPI_STP) setup time and hold time

9.2

tDD

Data out available from clock rising edge

10.7

Table 61. Ethernet DC electrical characteristics

Symbol

Parameter

Min.(1)

1. All the voltages are measured from the local ground potential.

Max.(1)

Unit

Input level

VDD

Ethernet operating voltage

2.7

3.6

Clock

Control In

(ULPI_DIR,

ULPI_NXT)

data In

(8-bit)

Control out

(ULPI_STP)

data out

(8-bit)

tDD

tDC

tHD

tSD

tHC

tSC

ai17361c

tDC

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