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68HC705JB4 Datasheet(PDF) 69 Page - Freescale Semiconductor, Inc |
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68HC705JB4 Datasheet(HTML) 69 Page - Freescale Semiconductor, Inc |
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69 / 134 page  February 24, 1999 GENERAL RELEASE SPECIFICATION MC68HC05JB4 UNIVERSAL SERIAL BUS MODULE MOTOROLA REV 2 10-3 Figure 10-2. Supported Transaction Types per Endpoint Each USB transaction is comprised of a series of packets. The MC68HC05JB4 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 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 ACK ACK SETUP IN DATA0 DATA1 ACK ACK DATA0/1 IN ACK Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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