User's Manual

COMPANY CONFIDENTIAL
28
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.
MIICRS
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.