Datasheet

2−13
2.5.4 OEPBCNT_0: Output Endpoint-0 Byte Count Register
76 5 43210
NAK RSV RSV RSV C
3
C
2
C
1
C
0
R/W R/O R/O R/O R/W R/W R/W R/W
BIT NAME RESET FUNCTION
3−0 C[3:0] 0000 Byte count:
0000b ³ Count = 0
L
0111b ³ Count = 7
1000b ³ Count = 8
1001b to 1111b are reserved. (If used, defaults to 8)
6−4 RSV 0 Reserved = 0
7 NAK 1 NAK= 0 No valid data in buffer. Ready for host out
NAK= 1 Buffer contains a valid packet from the host (NAK the host).
2.6 USB Registers
2.6.1 FUNADR: Function Address Register
This register contains the device function address.
76 5 43210
RSV FA6 FA5 FA4 FA3 FA2 FA1 FA0
R/O R/W R/W R/W R/W R/W R/W R/W
BIT NAME RESET FUNCTION
6−0 FA[6:0] 0000000 These bits define the current device address assigned to the function. The MCU writes a value to this
register as a result of the SET-ADDRESS host command.
7 RSV 0 Reserved = 0