39.19.2 Interval for the Bulk-Out/Ping Transaction

Name: BINTERVAL
Offset: 0x103
Reset: 0x00
Property: PAC Write-Protection

Bit 76543210 
 BINTERVAL[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bits 7:0 – BINTERVAL[7:0] 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.

BINTERVALDescription
=0Multiple consecutive OUT token is sent in the same frame until it is acked by the peripheral
>0One OUT token is sent every BINTERVAL frame until it is acked by the peripheral

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

PTYPEDescription
Interrupt1 ms to 255 ms
Isochronous2^(Binterval) * 1 ms
Bulk or control1 ms to 255 ms
EXT LPMbInterval ignored. Always 1 ms when a NYET is received.