Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
802
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
31.8.5.5 Host Frame Length Register
Name:
FLENHIGH
Offset:
0x12
Reset:
0x0000
Property:
Read-Only
z
Bits 7:0 – FLENHIGH: Frame Length
These bits contains the 8 high-order bits of the internal frame counter.
These bits contains the 8 high-order bits of the internal frame counter.
Table 31-22. Counter description versus speed
Bit
7
6
5
4
3
2
1
0
FLENHIGH[7:0]
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Table 31-23. Counter Description vs. Speed
Host Register
STATUS.SPEED
STATUS.SPEED
Description
Full Speed
With a USB clock running at 12MHz, counter length is 12000 to ensure a SOF
generation every 1 ms
generation every 1 ms