Microcontrollers Data Sheet

Advance Information MC68HC(7)08KH12 — Rev. 1.1
116 Freescale Semiconductor
Figure 9-1. USB Block Diagram
9.4 I/O Register Description of the HUB function
The USB hub function provides a set of control/status registers and
sixteen data registers that provide storage for the buffering of data
between the USB hub function and the CPU. These registers are shown
in Table 9-1 and Table 9-2.
D0+
D0–
TRANSCEIVER
3.3V OUT
CPU BUS
TRANSCEIVER
D1+
:
D4+
D1–
:
D4–
ROOR PORTDOWNSTREAM PORTS
HUB REPEATER
REGULATOR
SERIAL
FRAME
COUNTER
ENGINE
HUB
CONTROL
LOGIC
REGISTERS
ENDPOINT 0 - 8/8 B (CONTROL)
ENDPOINT 1 - 1 B (INTERRUPT)
ENDPOINT 0 - 8/8 (CONTROL)
ENDPOINT 1/2 - 8 B (TRANSMIT ONLY, INTERRUPT/BULK)
12MHz
USBCLK (FROM CGM)
EMBEDDED DEVICE
CONTROL
LOGIC
INTERFACE
48MHz