XC68HC705JB3 Motorola, XC68HC705JB3 Datasheet - Page 71

• Manufacturer Part Number: XC68HC705JB3
• Description: MICROCONTROLLER
• Manufacturer: Motorola

10.2.1 USB Protocol
MC68HC05JB3
REV 1
ENDPOINT 0 TRANSACTIONS:
Control Write
ENDPOINTS 1 & 2 TRANSACTIONS:
Interrupt
Bulk Transmit
Control Read
No-Data Control
SETUP
SETUP
SETUP
Figure 10-2
MC68HC05JB3 USB module. The transactions are portrayed as error free. The
effect of errors in the data flow are discussed later.
Each USB transaction is comprised of a series of packets. The MC68HC05JB3
USB module supports the packet types shown in Figure 10-3. Token packets are
generated by the USB host and decoded by the USB device. Data and
Handshake packets are both decoded and generated by the USB device
depending on the type of transaction.
IN
IN
Figure 10-2. Supported Transaction Types per Endpoint
DATA0
DATA0
DATA0
OUT
IN
DATA0/1
DATA0/1
shows
DATA0
DATA0
ACK
ACK
ACK
UNIVERSAL SERIAL BUS MODULE
the
ACK
ACK
various
November 5, 1998
ACK
ACK
OUT
transaction
IN
IN
GENERAL RELEASE SPECIFICATION
DATA1
DATA1
DATA1
OUT
OUT
IN
IN
types
KEY:
DATA0/1
DATA0/1
DATA1
DATA1
ACK
ACK
ACK
supported
Unrelated Bus
Traffic
Host
Generated
Device
Generated
MOTOROLA
ACK
ACK
ACK
ACK
by
10-3
the