Teac DW-224E-V - IDE HARDWARE INTERFACE; Interface Outline and Electricals

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(4) Open-drain output signals ( –IOCS16)
• Low level : 0 to 0.4VDC (output sink current 12mA)
• Maximum output current at high impedance
: ±25µA
(5) Input signals (–RESET, –DIOW, –DIOR, –CSEL, –DMACK, DA0 to DA2, –CS0, –CS1)
(a) Input signal level
• Low level : 0 to 0.8VDC
• High level : 2.0 to 5.25VDC
• Hysteresis (excluding RESET, –CSEL)
: possessed
• Maximum input current : ±25µA (excluding the pull-up resistance)
• Pull-up resistance
–RESET : 10kΩ
–CSEL : 47kΩ
• Series resistance (–RESET, –DIOW, –DIOR, –DMACK, DA0 to DA2, –CS0, –CS1)
:82Ω
14.3 Input/Output Signals
Refer to Table 14.3-1.
Among the following signals, the input signal refers to the signal input to the CD-RW drive and the output
signal refers to the signal output from the CD-RW drive and the input/output signal refers to the bidirectional
signal.
(Table 14.3-1) IDE Interface signal summary (Sheet 1 of 2)
Signal Description Direction
–CSEL Cable select IN
–CS0 Chip select0 IN
–CS1 Chip select1 IN
DD0 Data bus bit 0 IN/OUT
DD1 Data bus bit 1 IN/OUT
DD2 Data bus bit 2 IN/OUT
DD3 Data bus bit 3 IN/OUT
DD4 Data bus bit 4 IN/OUT
DD5 Data bus bit 5 IN/OUT
DD6 Data bus bit 6 IN/OUT
DD7 Data bus bit 7 IN/OUT
DD8 Data bus bit 8 IN/OUT
DD9 Data bus bit 9 IN/OUT
DD10 Data bus bit 10 IN/OUT
DD11 Data bus bit 11 IN/OUT
DD12 Data bus bit 12 IN/OUT
DD13 Data bus bit 13 IN/OUT
DD14 Data bus bit 14 IN/OUT
DD15 Data bus bit 15 IN/OUT
–DASP Device active/Slave present IN/OUT