Usb Nak Limit Register (Usbnaklmt), Offset 0X10B; Usb Nak Limit Register (Usbnaklmt); Usb Nak Limit Register (Usbnaklmt) Field Descriptions - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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18.5.33 USB NAK Limit Register (USBNAKLMT), offset 0x10B

The USB NAK limit 8-bit read-only register (USBNAKLMT) 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 USBTXINTERVAL[n] and USBRXINTERVAL[n] registers.)
The number of frames selected is 2(m-1) (where m is the value set in the register, with valid values of
2–16). 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 timeout function.
Mode(s): OTG A or Host
USBNAKLMT is shown in
7
Reserved
R-0
LEGEND: R/W = Read/Write; -n = value after reset
Table 18-43. USB NAK Limit Register (USBNAKLMT) Field Descriptions
Bit Field Value
7-5 Reserved 0
4-0 NAKLMT 0
SPRUHE8E – October 2012 – Revised November 2019
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Figure 18-40 and described in
Figure 18-40. USB NAK Limit Register (USBNAKLMT)
5 4
Description
Reserved
EP0 NAK Limit specifies the number of frames after receiving a stream of NAK responses.
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Table 18-43.
NAKLMT
R/W-0
M3 Universal Serial Bus (USB) Controller
Register Descriptions
0
1375