User's Manual

JukeBlox Networked Media Modules – CX Series
Datasheet
SMSC CX860/CX870 23 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
Notes:
1. Signal type codes:
I – 3.3V level Digital Logic Input into the DM870
O – 3.3V level Digital Logic Output from the DM870
IO – 3.3V level Digital Logic Input and Output (bi-directional) signal
M – Miscellaneous, see text for description
P – Power Supply
2. For SPI timing diagram for eDMP applications, please see:
BridgeCo_JB2x - DeviceControlProtocol_Registers_v_2_1.pdf, or later version.
For detailed setup and hold timing details, see DM870 IC data sheet:
dat_DM870_16_datasheet.pdf, or later version.
3. For audio port timing diagrams, and for detailed setup and hold timing, please see DM870 IC data
sheet:
dat_DM870_16_datasheet.pdf, or later version.
4. For example ethernet external schematic, see:
CX Module Ethernet (RJ45 + Ext.Magnetics)_V1.2.pdf, or later version.
5. For example USB schematics, see:
CX Module USB_V1.2.pdf, or later version.
6. For example use of extended GPIO shift registers, see CE2 schematic:
A EVMCE2-4_schematic.pdf, or later version.
7. For example connection to a video D/A converter, see CE2 schematic:
A EVMCE2-4_schematic.pdf, or later version.
8. iPod dock connector pin and GPIO assignments are under discussion. Please contact SMSC for
recommendations for iPod dock connections to CX870 module.
9. For example connection to an LCD display, see CE2 schematic:
A EVMCE2-4_schematic.pdf, or later version.
10. All the above signals are brought out to J2 pins. Not all the above signals are brought out to J3, the
64-pin low density connector. The J3 pin assignments table shows which signals are brought out to
the J3 pins.
11. SMSC has a set of example motherboard schematics that shows example external circuitry that is
typically connected to the module. Please check the SMSC/BridgeCo customer portal at
https://portal.bridgeco.net/
for a copy of these example schematics.
12. Please check the SMSC/BridgeCo Customer Portal
Download area for the latest version of the
SMSC documents. Go to https://portal.bridgeco.net/
. If you do not have an account, please contact
SMSC.