Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK Data Sheet

541

SAM9G25 [DATASHEET]

11032D–ATARM–10-Mar-2014

Note:

The values shown on the 22 k

Ω and 15 kΩ resistors are only valid with 3V3 supplied PIOs. 

Both 39

Ω resistors need to be placed as close to the device pins as possible.

The UDPHS is not continuously clocked.

For using the UDPHS, the programmer must first enable the UDPHS Clock in the Power Management Controller 
(PMC_PCER register). Then enable the PLL (PMC_UCKR register). 

However, if the application does not require UDPHS operations, the UDPHS clock can be stopped when not needed and 
restarted later.

The UDPHS interrupt line is connected on one of the internal sources of the Interrupt Controller. Using the UDPHS 

interrupt requires the Interrupt Controller to be programmed first.

PIO (VBUS DETECT)

DHSDP

DHSDM

DFSDM

DFSDP

VBG

GNDUTMI

C

RPB

:1µF to 10µF

C

RPB

1

4

2

3

10 pF

"B" Receptacle
1 = VBUS
2 = D-
3 = D+
4 = GND

Ω

Ω

Shell = Shield

15k 

22k

39 ± 1% 

Ω

39 ± 1% 

Ω

6K8 ± 1% 

Ω

(1)

(1)

UDPHS

23