LM3S5632 Luminary Micro, Inc, LM3S5632 Datasheet - Page 582

• Manufacturer Part Number: LM3S5632
• Description: Lm3s5632 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Type
Univeral Serial Bus (USB) Controller
USB NAK Limit (USBNAKLMT)
Base 0x4005.0000
Offset 0x10B
Type R/W, reset 0x00
582
Host
Bit/Field
7:5
4:0
RO
7
0
reserved
RO
Register 52: USB NAK Limit (USBNAKLMT), offset 0x10B
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
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:
6
0
RO
NAKLMT
reserved
5
0
Name
A value of 0 or 1 disables the NAK timeout function.
R/W
4
0
R/W
3
0
Type
R/W
RO
NAKLMT
R/W
2
0
R/W
Reset
0x00
0x00
1
0
(m-1)
Preliminary
R/W
(where m is the value set in the register, with valid values
0
0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
EP0 NAK Limit
Number of frames after receiving a stream of NAK responses.
June 02, 2008