參數(shù)資料
型號: MC68HC05JB3JDW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 118/148頁
文件大小: 1600K
代理商: MC68HC05JB3JDW
November 5, 1998
GENERAL RELEASE SPECIFICATION
MC68HC05JB3
UNIVERSAL SERIAL BUS MODULE
MOTOROLA
REV 1
10-3
10.2.1 USB Protocol
shows
the
various
transaction
types
supported
by
the
MC68HC05JB3 USB module. The transactions are portrayed as error free. The
effect of errors in the data ow are discussed later.
Figure 10-2. Supported Transaction Types per Endpoint
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.
SETUP
IN
OUT
DATA0/1
DATA0
DATA1
ACK
DATA1
OUT
ACK
OUT
DATA0
ACK
DATA0/1
ENDPOINT 0 TRANSACTIONS:
Control Write
Control Read
No-Data Control
ENDPOINTS 1 & 2 TRANSACTIONS:
Interrupt
Bulk Transmit
IN
ACK
KEY:
Unrelated Bus
Traffic
Host
Generated
Device
Generated
ACK
SETUP
OUT
IN
DATA0/1
DATA0
DATA1
ACK
DATA1
IN
ACK
IN
DATA0
ACK
SETUP
IN
DATA0
DATA1
ACK
DATA0/1
IN
ACK
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