參數(shù)資料
型號: 82C862
廠商: Electronic Theatre Controls, Inc.
英文描述: FireLink USB Dual Controller Quad Port USB
中文描述: FireLink雙控制器的USB四口USB
文件頁數(shù): 7/51頁
文件大小: 321K
代理商: 82C862
FireLink USB
82C862
912-2000-030
Revision: 1.0
Page 3
3.0 Signal Definitions
3.1
Terminology/Nomenclature Conventions
The "#" symbol at the end of a signal name indicates that the active, or asserted state occurs when the signal is at a low
voltage level. When "#" is not present after the signal name, the signal is asserted when at the high voltage level.
The terms assertion and negation are used extensively. This is done to avoid confusion when working with a mixture of active
low and active high signals. The term assert, or assertion indicates that a signal is active, independent of whether that level is
represented by a high or low voltage. The term negate, or negation indicates that a signal is inactive.
The tables in this section use several common abbreviations. Table 1 lists the mnemonics and their meanings. Note that
TTL/CMOS/Schmitt-trigger levels pertain to inputs only. Outputs are driven at CMOS levels.
Table 1.
Signal Definitions Legend
Mnemonic
Description
Analog
Analog-level compatible
CMOS
CMOS-level compatible
Dcdr
Decoder
Diff
Differential signal pair
Ext
External
G
Ground
I
Input
Int
Internal
I/O
Input/Output
Mux
Multiplexer
NIC
No Internal Connection
O
Output
OD
Open drain
P
Power
PD
Pull-down resistor
PU
Pull-up resistor
S
Schmitt-trigger
S/T/S
Sustain Tristate
TTL
TTL-level compatible
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