Datasheet

www.ti.com
2.5.2 IEPBCNT_0: Input Endpoint-0 Byte-Count Register
2.5.3 OEPCNFG_0: Output Endpoint-0 Configuration Register
TUSB3210
Universal Serial Bus
General-Purpose Device Controller
SLLS466F – FEBRUARY 2001 – REVISED AUGUST 2007
7 6 5 4 3 2 1 0
NAK RSV RSV RSV C3 C2 C1 C0
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 → Count = 0
.
.
.
0111b → Count = 7
1000b → Count = 8
1001b to 1111b are reserved. (If used, defaults to 8)
6–4 RSV 0 Reserved
7 NAK 1 NAK = 0 Buffer contains a valid packet for host-in transaction.
NAK = 1 Buffer is empty (host-in request is NAK).
7 6 5 4 3 2 1 0
UBME RSV TOGLE RSV STALL USBIE RSV RSV
R/W R/O R/O R/O R/W R/W R/O R/O
BIT NAME RESET FUNCTION
1–0 RSV 0 Reserved
2 USBIE 0 USB interrupt enable on transaction completion. Set/cleared by the MCU
USBIE = 0 No interrupt
USBIE = 1 Interrupt on transaction completion
3 STALL 0 USB stall condition indication. Set/cleared by the MCU
STALL = 0 No stall
STALL = 1 USB stall condition. If set by the MCU, a STALL handshake is initiated and the bit is cleared
automatically.
4 RSV 0 Reserved
5 TOGLE 0 USB toggle bit. This bit reflects the toggle sequence bit of DATA0, DATA1.
6 RSV 0 Reserved
7 UBME 0 UBM enable/disable bit. Set/cleared by the MCU
UBME = 0 UBM cannot use this endpoint.
UBME = 1 UBM can use this endpoint.
Submit Documentation Feedback Functional Description 25