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MC68HC908JB8 Datasheet, PDF (119/286 Pages) Motorola, Inc – MICROCONTROLLERS | |||
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9.3 Features
Universal Serial Bus Module (USB)
Features
Features of the USB module include:
⢠Full Universal Serial Bus Specification 1.1 low-speed functions
⢠1.5 Mbps data rate
⢠On-chip 3.3V regulator
⢠Endpoint 0 with 8-byte transmit buffer and 8-byte receive buffer
⢠Endpoint 1 with 8-byte transmit buffer
⢠Endpoint 2 with 8-byte transmit buffer and 8-byte receive buffer
⢠USB data control logic:
â Control endpoint 0 and interrupt endpoints 1 and 2
â Packet decoding/generation
â CRC generation and checking
â NRZI (Non-Return-to Zero Inserted) encoding/decoding
â Bit-stuffing
⢠USB reset options:
â Internal MCU reset generation
â CPU interrupt request generation
⢠Suspend and resume operations, with remote wakeup support
⢠USB-generated interrupts:
â Transaction interrupt driven
â Resume interrupt
â End-of-packet interrupt
â USB reset
⢠STALL, NAK, and ACK handshake generation
MC68HC908JB8â¢MC68HC08JB8â¢MC68HC08JT8 â Rev. 2.3
Freescale Semiconductor
Universal Serial Bus Module (USB)
Technical Data
119
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