mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 146

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

USB 2.0 FS Module
11.3 USB Module Architecture
The USB module block diagram is shown in
transceiver, USB control logic, USB request processor, USB endpoint controller and USB Endpoint buffer.
11.3.1 USB Transceiver
The USB transceiver is electrically compliant to the Universal Serial Bus Specification 2.0. The on-chip
3.3V regulator provides a stable power source for the termination pull-up resistor. Full speed devices are
terminated with the pull-up resistor on the D+ line.
146
3.3V
D+
D–
3.3V
Regulator
Endpoint
Buffer
Figure 11-1. USB Module Block Diagram
MC68HC908JW32 Data Sheet, Rev. 5
System Bus
Figure
11-1. The module involves six major blocks - USB
USB
Control
Logic
USB
Endpoint
Controller
USB
Request
Processor
Freescale Semiconductor