mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 213

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

14.7.4 USB Embedded Device Control Register 0 (DCR0)
MC68HC908LD64
Freescale Semiconductor
—
Rev. 3.0
Address:
TXD1FR — Embedded Device Endpoint 1/2 Transmit Flag Reset
T0SEQ — Embedded Device Endpoint 0 Transmit Sequence Bit
DSTALL0 — Embedded Device Endpoint 0 Force Stall Bit
Figure 14-16. USB Embedded Device Control Register 0 (DCR0)
Reset:
Read:
Write:
Writing a logic 1 to this write-only bit will clear the TXD1F bit if it is set.
Reset clears this bit.
This read/write bit determines which type of data packet (DATA0 or
DATA1) will be sent during the next IN transaction directed at
endpoint 0. Toggling of this bit must be controlled by software. Reset
clears this bit.
This read/write bit causes embedded device endpoint 0 to return a
STALL handshake when polled by either an IN or OUT token by the
host. The USB hardware clears this bit when a SETUP token is
received. Reset clears this bit.
1 = Write 1 to clear TXD1F
0 = No effect
1 = DATA1 token active for next embedded device endpoint 0
0 = DATA0 token active for next embedded device endpoint 0
1 = Send STALL handshake
0 = Default
T0SEQ
$004B
Bit 7
Universal Serial Bus Module (USB)
transmit
transmit
0
DSTALL0
6
0
TX0E
5
0
RX0E
4
0
Embedded Device Function I/O Registers
TP0SIZ3
Universal Serial Bus Module (USB)
3
0
TP0SIZ2
2
0
TP0SIZ1
1
0
Data Sheet
TP0SIZ0
Bit 0
0
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