MC908JB16DWE Datasheet, PDF (168/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Universal Serial Bus Module (USB)
11.5 Functional Description
Figure 11-2 shows the block diagram of the USB module. The USB
module manages communications between the host and the USB
function. The module is partitioned into three functional blocks. These
blocks consist of a dual-function transceiver, the USB control logic, and
the endpoint registers. The blocks are further detailed later in this section
(see 11.7 Hardware Description).
CPU BUS
USB
CONTROL
LOGIC
RCV
VPIN
VMIN
VPOUT
VMOUT
D+
USB
UPSTREAM
D – ^PORT
FROM OSC
6 MHZ
USB REGISTERS
Figure 11-2. USB Block Diagram
Technical Data
168
Universal Serial Bus Module (USB)
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor