AT91SAM9G46B-CU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM9G46B-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

48.15.5.4 RMII Mode

Table 48-45.

Symbol

EMAC21

EMAC22

EMAC23

EMAC24

EMAC25

EMAC26

EMAC27

RMII Mode

Parameter

ETXEN toggling from EREFCK rising

ETX toggling from EREFCK rising

Setup for ERX from EREFCK rising

Hold for ERX from EREFCK rising

Setup for ERXER from EREFCK rising

Hold for ERXER from EREFCK rising

Setup for ECRSDV from EREFCK rising

Figure 48-24. EMAC RMII Timings

EREFCK

ETXEN

ETX[1:0]

ERX[1:0]

ERXER

ECRSDV

EMAC23

EMAC24

EMAC25

EMAC26

EMAC27

EMAC28

Min

Max

Unit

2

16

ns

2

16

ns

4

ns

2

ns

4

ns

2

ns

4

ns

EMAC21

EMAC22

48.15.6 USART in SPI Mode

48.15.6.1 Timing Conditions

Timings are given assuming a capacitance load on MISO, SPCK and MOSI as defined in Table 48-46.

Table 48-46.

Capacitance Load for MISO, SPCK and MOSI (product dependent)

Corner

Supply

Max

3.3V

40 pF

1.8V

20 pF

Min

0 pF

0 pF

SAM9G46 Series [DATASHEET]

Atmel-11028G-ATARM-SAM9G46-Datasheet_08-Dec-15

1239

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