Module Components
MOTOROLA
USB Device Port
28-5
Six endpoint FIFOs are available in the USB device module:
•
FIFO 0
,
32 bytes
•
FIFO 1
,
64 bytes
•
FIFO 2
,
64 bytes
•
FIFO 3
,
32 bytes
•
FIFO 4
,
32 bytes
•
FIFO 5
,
32 bytes
28.2.4 Control Logic
The USB module’s control logic section implements the logic and registers that allow the user to control
and communicate with the USB module. The register functions include interrupt status/mask, USB
configuration download, FIFO control and access, and device request processing from the control
endpoint.
28.2.5 USB Transceiver Interface
The MC9328MX1 provides support for a low-cost external USB transceiver interface. Generic USB
transceivers that support 3.0 V I/O levels are supported. The transceiver interface signals are illustrated in
Figure 28-2 and each signal is described in the following section.
Figure 28-2. USB Module Transceiver Interface
28.2.6 Signal Description
The USB module has seven signals that can be used to interface with the external USB driver.
•
USBD_AFE
—Analog Front-End Enable. This signal is used to enable the front-end transceiver
(optional).
•
USBD_ROE
—Reverse Output Enable. This active low signal is used to control the transceiver to
drive its D+/D- signal (to the host connection) according to the signal in USBD_VPO and
USBD_VMO (output signal), respectively.
•
USBD_VMO/USBD_VPO
—USB Module Data Output. These signals provide single ended data
to the USB Transceiver Transmitter differential driver.
UDC
V
CC
OE
VMO/FSEO
VPO
SUSPND
RCV
VP
VM
V Supply
SW
USB Core
USB
USBD_AFE
USBD_ROE
USBD_VMO
USBD_BPO
USBD_SUSPND
USBD_RCV
USBD_VP
USBD_VM
D +
D –
I/O Tr
an
slators
Transceiver
MC9328MX1MC
9328MXL
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...