Hitachi HTS541680J9AT00 Specifications - Page 179

Travelstar 5K160 (PATA) Hard Disk Drive Specification 15 Timings The timing of BSY and DRQ in Status Register are shown in the following figure. The other timings are described in Final Functional part. FUNCTION INTERVAL START STOP Power On Device Busy Power On Status Register Software Reset Hard Reset Data In Command After Power On Device Ready After Power On Device Busy After Software Reset Device Ready After Software Reset Device Busy After Hard Reset Device Ready After Hard Reset Device Busy After Command Code Out Interrupt, DRQ For Data Transfer In Data Out Command Device Busy After Data Transfer In Device Busy After Command Code Out Device Busy After Data Transfer Out Interrupt For Data Transfer Out Non-Data Device Busy Command After Command Code Out Interrupt For Command Complete DMA Data Device Busy Transfer After Command Code Out Command Figure 132 Timeout Values Power On Device Control Register RST=1 Device Control Register RST=0 after RST=1 Bus RESET Signal Asserted Bus RESET Signal Asserted OUT to Command Register Status Register BSY=1 256th Read From Data Register OUT to Command Register 256th Write From Data Register Status Register BSY=1 OUT to Command Register Status Register BSY=1 Out to Command Register BSY=1 Status Register BSY=0 and RDY=1 Status Register BSY=1 Status Register BSY=0 and RDY=1 Status Register BSY=1 Status Register BSY=0 and RDY=1 Status Register BSY=1 Status Register BSY=0 and DRQ=1 Interrupt Status Register BSY=1 Status Register BSY=1 Status Register BSY=1 Status Register BSY=0 and RDY=1 Interrupt Status Register BSY=1 Interrupt Status Register BSY=1 TIMEOUT 400 ns 31 sec 400 ns 31 sec 400 ns 31 sec 400 ns 30 sec 10 us 400 ns 5 us 30 sec (Note.1) 400 ns 30 sec (Note.2) 400 ns Command category is referred to "13 Command Protocol" on page 83. The abbreviations "ns", "us", "ms" and "sec" mean nanoseconds, microseconds, milliseconds and seconds, respectively. We recommend that the host system executes Soft reset and then retry to issue the command if the host system timeout would occur for the device. (Note.1) For SECURITY ERASE UNIT command, the execution time is referred to "14.28 Security Erase Unit (F4h)" on page 136. (Note.2) FORMAT UNIT command, the execution time is referred to "14.7 Format Unit (F7h: Vendor Specific)" on page 102. Security Disable Password, Security Erase Unit, Security Set Password, Security Unlock. 179/188