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参数资料
| 型号： | LC895195 |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| 封装： | SQFP-144 |
| 文件页数： | 6/8页 |
| 文件大小： | 63K |
| 代理商： | LC895195 |
No. 5192-6/8
LC895195
Pin Functions
1. ATA-PI Pins
ZCS1FX (input)
Chip select signal for selecting the command block register.
ZCS3FX (input)
Chip select signal for selecting the control block register.
DA0 to DA2 (input)
Address for accessing the ATAPI registers.
ZDASP (I/O)
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.
DD0 to DD15 (I/O)
16-bit data bus. Can be used for either 8-bit or 16-bit data transfers.
ZDIOR (input)
Read strobe signal from the host.
ZDIOW (input)
Write strobe signal from the host.
ZDMACK (input)
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.
DMARQ (output)
Drive request signal during DMA transfers
HINTRQ (output)
Drive interrupt signal to the host
ZIOCS16 (output)
Signal asserted by the drive when the drive supports 16-bit transfers.
This signal is not asserted during DMA transfers.
IORDY (output)
Signal that indicates that the drive has completed response preparations during data transfers.
This signal is low when the drive is not ready.
ZPDIAG (I/O)
Signal asserted by drive 1 to inform drive 0 that diagnostics have completed.
An external pull-up resistor must be connected to this pin.
ZHRST (input)
Reset signal from the host.
The pin circuit does not include a pull-up resistor.
2. MC (microcontroller) Interface Pins
ZCS (input)
Microcontroller chip select signal
CSCTRL (input)
Microcontroller chip select logic selection signal
High - ZCS functions as an active low signal.
Low - ZCS functions as an active high signal.
ZRD, ZWR, SUA0 to SUA6 (input)
Microcontroller interface control signals.
The SUA0 to SUA6 pins are address lines.
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