User Manual

Preliminary Data Sheet: CX Series
JukeBlox Networked Media Modules
dat_CX860_CX870_1_7_datasheet_c.doc PRELIMINARY - CONFIDENTIAL Version 1.7 – May 13
th
2011 - Page 15 of 23
USB
USB_DN, USB_DP M USB data signals, normally connected to type A connector, USB switch or iPod dock
connector. Maximum bit rate is USB High Speed at 480Mbps.
USB_VBUS M Analog input for monitoring USB type A connector power. Connect to the +5V power
which is driving the USB type A connector power pins. If this pin drops below 4.6V, then
the DM870 will drive the USBVBUSDRV signal low to control an external power MOSFET
to disconnect +5V power from the USB type A connector. See Note 5.
USBVBUSDRV O Logic output to control an external MOSFET that is in series with USB type A connector
power. See USB_VBUS above and Note 5.
JTAG
TMS,TCK,TDI, TDO I/O JTAG port for DM870. Leave open.
SSM
SSMD4, SSMD5,
SSMD6, SSMD7
I/O Can be used to drive external shift registers to make extended GPIO signals (see Note 6),
or as individual GPIO signals, or to make an SD card interface. SD card firmware is not
supported at present in JB2. Can be mapped to GPIO #s 08,09,10,11. Leave open if not
used.
SSMD0, SSMD1,
SSMD2, SSMD3,
SSMCLK, SSMCP,
SSMCMD, SSMWP
I/O Used to make an SD card interface. SD card firmware is not supported at present in JB2.
Leave open.
VIDEO
AV0CLK, AV0CTRL0,
AV0CTRL1, AV0CTRL2,
AV0DATA0, AV0DATA1,
AV0DATA2, AV0DATA3,
AV1DATA0, AV1DATA1,
AV1DATA2, AV1DATA3
O ITU-R BT.656 digital video output signals. Optionally used to make a TVout menu display,
or to display decoded album art. Can be connected to video D/A converter (see Note 7),
or connected to a video DSP.
GPIO
(not already
mentioned elsewhere in
this table)
A22 O GPIO18 Reserved for NOR flash address A22. Leave open.
A23 O GPIO-16 Reserved for NOR flash address A23. Leave open.
NWAIT I/O GPIO-15 Not currently assigned. Leave open.
NCS2 I GPIO-19 Assigned to iPod dock connector iPod NDETECT. See Note 8.
VCO1 I/O GPIO-07 Not currently assigned. Leave open.
MMIICRS I/O GPIO-00 Not currently assigned. Leave open.
MIICOL I/O GPIO-01 Not currently assigned. Leave open.
MIITXER I/O GPIO-02 Not currently assigned. Leave open.
MIITXCLK I/O GPIO-03 iPod dock connector Accessory Power signal. See Note 8.
MII
MIITXD0, MIITXD1,
MIIRXD0, MIIRXD1
I/O Can be used, with GPIO signals above, to drive an external ethernet PHY. This is not
supported by JB2 firmware. Leave open.
LCD
LCDD0, LCDD1,
LCDD2, LCDD3,
LCDD4, LCDD5,
LCDD6, LCDD7,
LCDD8, LCDD9,
LCDD10, LCDD11,
LCDD12, LCDD13,
LCDD14, LCDD15,
LCD16, LCDD17,
LCDCLK, LCDCTRL0,
LCDCTRL1, LCDCTRL2,
LCDCTRL3
O Uses optional J1 LCD connector. Connect to local LCD display. See Note 9. Leave open if
not used.