MC68HC908BD48 Datasheet, PDF (175/290 Pages) Freescale Semiconductor, Inc – Microcontrollers

Universal Serial Bus Module (USB)
Registers
ENABLE2 — Endpoint 2 Enable
This bit is set to enable endpoint 2 to respond to addressed IN packet
tokens. Reset clears this bit.
1 = Endpoint 2 enabled; and responds to IN tokens
0 = Endpoint 2 disabled
ENABLE1 — Endpoint 1 Enable
This bit is set to enable endpoint 1 to respond to addressed IN packet
tokens. Reset clears this bit.
1 = Endpoint 1 enabled; and responds to IN tokens
0 = Endpoint 1 disabled
STALL2 — Endpoint 2 STALL Handshake
This bit is set to generate the STALL handshake packet as next IN
transaction handshake packet from endpoint 2. Reset clears this bit.
1 = Send STALL handshake on endpoint 2
0 = Do not send STALL handshake on endpoint 2
STALL1 — Endpoint 1 STALL Handshake
This bit is set to generate the STALL handshake packet as next IN
transaction handshake packet from endpoint 1. Reset clears this bit.
1 = Send STALL handshake on endpoint 1
0 = Do not send STALL handshake on endpoint 1
13.5.7 USB Status Register (USR)
Address:
Read:
Write:
Reset:
$002C
Bit 7
6
5
4
3
2
1
RSEQ SETUP TX1ST
0
RPSIZ3 RPSIZ2 RPSIZ1
Indeterminate after reset
= Unimplemented
Figure 13-7. USB Status Register (USR)
Bit 0
RPSIZ0
MC68HC908BD48 — Rev. 1.0
MOTOROLA
Universal Serial Bus Module (USB)
Technical Data
175