mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 800

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Communication Processor Module
The USB transmitter contains four independent FIFOs, each containing 16 bytes. There is
a dedicated FIFO for each of the four supported endpoints. The USB receiver has a single
16-byte FIFO. When the USB controller is not enabled in the USB mode register, it
consumes minimal power.
RX FIFO
RECEIVER
AND HOST STATE MACHINES
USB FUNCTION ENDPOINT
EXTERNAL TRANSCEIVER
PERIPHERAL BUS
INTERFACE
DPLL/
BUS
Figure 16-109. USB Controller Block Diagram
Freescale Semiconductor, Inc.
FIFO
TRANSMITTER
FIFO
For More Information On This Product,
FIFO TX DATA FIFO
DATA
DATA
DATA
MPC823 REFERENCE MANUAL
TX
TX
Go to: www.freescale.com
TX
MODE REGISTER
REGISTERS
ENDPOINT
PORT CONFIGURATION
PORT CONTROL
U-BUS
COMMAND REGISTER
REGISTER
ADDRESS
MOTOROLA