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(Advance Version)
IP178A
PIN Description (continued)
Pin no.
Label
Type
Description
Direct mode LED.
108
DIRECT_LED
IPL
Direct mode LED
It is latched at the end of reset to select LED mode. It will be lathed as high, if it is
connected to VCC through a resistor. It will be latched as low, if it is left open.
1: LED direct mode.
IP178A provides 24 LED pins to drives 24 LED directly. The 24 LED are
LINK_LED[7:0], SPEED_LED[7:0], and FDX_LED[7:0].
0: LED scan mode (default)
IP178A provides 12 LED pins to drives 32 LED in scan mode. The 32 LED are
Link LED[7:0], Speed LED[7:0], Full duplex LED[7:0], and Rx LED[7:0]. It is
compatible to the previous version of IP178.
Preliminary, Specification subject to change without notice
8
IP178A-DS-P05
Sep. 09, 2002
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