SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
USB NAK Limit (USBNAKLMT)
OTG A / Host
USBNAKLMT is an 8-bit register that sets the number of frames after which endpoint 0 should time out on receiving a stream of NAK responses. (Equivalent settings for other endpoints can be made through their USBTXINTERVALn and USBRXINTERVALn registers.)
The number of frames selected is 2(m-1) (where m is the value set in the register, with valid values of 2 to 16). If the Host receives NAK responses from the target for more frames than the number represented by the limit set in this register, the endpoint is halted.
NOTE
A value of 0 or 1 disables the NAK time-out function.
USBNAKLMT is shown in Figure 27-45 and described in Table 27-50.
Return to Summary Table.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RESERVED | NAKLMT | ||||||
| R-0x0 | R/W-0x0 | ||||||