M68HC08 datasheet(175/288 Pages) FREESCALE

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Universal Serial Bus Module (USB)

MC68HC908BD48 — Rev. 2.1

Data Sheet

Freescale Semiconductor

Universal Serial Bus Module (USB)

175

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:

$002C

Bit 7

654321

Bit 0

Read:

RSEQ

SETUP

TX1ST

RPSIZ3

RPSIZ2

RPSIZ1

RPSIZ0

Write:

Reset:

Indeterminate after reset

= Unimplemented

Figure 13-7. USB Status Register (USR)

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