Signal Characteristics - Epson SCE8720C Series Hardware Manual

3.2 Signal characteristics

This section describes characteristics of each signal. Characteristic factors are as follows:
• I/O
Type of signal input/output.
• Voltage Input: Indicates the voltage level that can be input.
Output: Indicates the voltage level that can be output.
• pull-up /down
Indicates whether or not the signal is pulled-up or pulled-down inside
SCE8720C.
• I
/I Indicates drive ability of the output buffer sink current and source
OL OH
current.
• Reference PU/PD Reference value of required pull-up or pull-down resistance.
(When using all the IO port.)
• pull-up /down when not used
Indicates whether or not pull-up or pull-down is required when not
using signals.
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CARD-PCI/GX Hardware Manual
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