Data Sheet

824

Atmel | SMART SAM D21 [DATASHEET]

Atmel-42181G–SAM-D21_Datasheet–09/2015

31.8.6.2 Interval for the Bulk-Out/Ping transaction Register

Name:

BINTERVAL

Offset: 0x103 + (n x 0x20)

Reset: 0x0000

Property: Write-Protected

z Bits 7:0 – BINTERVAL: BINTERVAL

These bits contains the Ping/Bulk-out period.

These bits are cleared when a USB reset is sent or when PEN[n] is zero.

Depending from the type of pipe the desired period is defined as:

Table 31-27. Pipe Type

Bit76543210

BINTERVAL[7:0]

Access R/W R/W R/W R/W R/W R/W R/W R/W

Reset00000000

BINTERVAL Description

Multiple consecutive OUT token is sent in the same frame until it is acked by the peripheral

One OUT token is sent every BINTERVAL frame until it is acked by the peripheral

PTYPE Description

Interrupt

1 ms to 255 ms

Isochronous

2^(Binterval) * 1 ms

Bulk or control

1 ms to 255 ms

EXT LPM

bInterval ignored. Always 1 ms when a NYET is received.