STM32F217VG datasheet(111/173 Pages) STMICROELECTRONICS

111 / 173 page

STM32F21xxx

Electrical characteristics

Doc ID 17050 Rev 8

111/173

Figure 44.

ULPI timing diagram

Ethernet characteristics

Table 59 shows the Ethernet operating voltage.

Table 60 gives the list of Ethernet MAC signals for the SMI (station management interface)

and Figure 45 shows the corresponding timing diagram.

Table 58.

ULPI timing

Symbol

Parameter

Value(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 59.

Ethernet DC electrical characteristics

Symbol

Parameter

Min.(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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