mc68hc05jb4p Freescale Semiconductor, Inc, mc68hc05jb4p Datasheet - Page 90

• Manufacturer Part Number: mc68hc05jb4p
• Description: Mc68hc705jb4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

GENERAL RELEASE SPECIFICATION
TX1STR — Clear Transmit First Flag
TX1ST — Transmit First Flag
ENABLE2 — Endpoint 2 Enable
ENABLE1 — Endpoint 1 Enable
STALL2 — Endpoint 2 Force Stall Bit
STALL1 — Endpoint 1 Force Stall Bit
Writing a logic 1 to this write-only bit will clear the TX1ST bit if it is set. Writing a
logic 0 to the TX1STR has no effect. Reset clears this bit.
This read-only bit is set if the Endpoint 0 Data Transmit Flag (TXD0F) is set
when the USB control logic is setting the Endpoint 0 Data Receive Flag
(RXD0F). That is, this bit will be set if an Endpoint 0 Transmit Flag is still set at
the end of an Endpoint 0 reception. This bit lets the firmware know that the
Endpoint 0 transmission happened before the Endpoint 0 reception. Reset
clears this bit.
This read/write bit enables Endpoint 2 and allows the USB to respond to IN
packets addressed to Endpoint 2. Reset clears this bit.
This read/write bit enables Endpoint 1 and allows the USB to respond to IN
packets addressed to Endpoint 1. Reset clears this bit.
This read/write bit causes Endpoint 2 to return a STALL handshake when
polled by either an IN or OUT token by the USB Host Controller. Reset clears
this bit.
This read/write bit causes Endpoint 1 to return a STALL handshake when
polled by either an IN or OUT token by the USB Host Controller. Reset clears
this bit.
1 = IN transaction occurred before SETUP/OUT.
0 = IN transaction occurred after SETUP/OUT.
1 = Endpoint 2 is enabled and can respond to an IN token.
0 = Endpoint 2 is disabled
1 = Endpoint 1 is enabled and can respond to an IN token.
0 = Endpoint 1 is disabled
1 = Send STALL handshake.
0 = Default
1 = Send STALL handshake
0 = Default
Freescale Semiconductor, Inc.
For More Information On This Product,
UNIVERSAL SERIAL BUS MODULE
Go to: www.freescale.com
February 24, 1999
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