lc895195 Sanyo Semiconductor Corporation, lc895195 Datasheet - Page 6

• Manufacturer Part Number: lc895195
• Description: Ata-pi Ide Cd-rom Decoder Lsi
• Manufacturer: Sanyo Semiconductor Corporation

Pin Functions
1. ATA-PI Pins
2. MC (microcontroller) Interface Pins
• ZCS1FX (input)
• ZCS3FX (input)
• DA0 to DA2 (input)
• ZDASP (I/O)
• DD0 to DD15 (I/O)
• ZDIOR (input)
• ZDIOW (input)
• ZDMACK (input)
• DMARQ (output)
• HINTRQ (output)
• ZIOCS16 (output)
• IORDY (output)
• ZPDIAG (I/O)
• ZHRST (input)
• ZCS (input)
• CSCTRL (input)
• ZRD, ZWR, SUA0 to SUA6 (input)
Chip select signal for selecting the command block register.
Chip select signal for selecting the control block register.
Address for accessing the ATAPI registers.
Drive 1 is output and drive 0 is input.
Signal used to indicate to drive 0 that drive 1 exists.
An external pull-up resistor must be connected to this pin.
16-bit data bus. Can be used for either 8-bit or 16-bit data transfers.
Read strobe signal from the host.
Write strobe signal from the host.
Acknowledge signal from the host in response to the drive DMARQ request signal during DMA transfers.
The pin circuit does not include a pull-up resistor.
Drive request signal during DMA transfers
Drive interrupt signal to the host
Signal asserted by the drive when the drive supports 16-bit transfers.
This signal is not asserted during DMA transfers.
Signal that indicates that the drive has completed response preparations during data transfers.
This signal is low when the drive is not ready.
Signal asserted by drive 1 to inform drive 0 that diagnostics have completed.
An external pull-up resistor must be connected to this pin.
Reset signal from the host.
The pin circuit does not include a pull-up resistor.
Microcontroller chip select signal
Microcontroller chip select logic selection signal
High - ZCS functions as an active low signal.
Low - ZCS functions as an active high signal.
Microcontroller interface control signals.
The SUA0 to SUA6 pins are address lines.
LC895195
No. 5192-6/8