4.4Various Processes

4.4.1Reset response

There are four types of resets.

!Power-on reset

!The ODD performs initialization such as initial diagnostics and default setting. If any media is mounted, it also spins up media.

!Hardware reset

!The ODD is reset when the RESET- signal is asserted. The ODD initializes the interface controller by setting default values.

!ATA reset (Software reset)

!The ODD is reset when the SRST bit of the Device Control register is set.

!The device driver should not use the SRST bit to reset the ODD (except for restore from sleep mode).

!After ATA reset, the ODD initializes the task file as shown below.

Status = X'00'

Error = (Depending on the SRST sequence) Sector Count = X'01'

Sector number = X'01' Cylinder Low = X'14' Cylinder High = X'EB' Drive/Head = X'00'

!RDBY is set to 1 with the first command after ATA reset.

!If ATA reset is issued while the ODD is selected and a command is being executed (BSY = 1 or DRQ = 1), the command is interrupted. Otherwise, the ODD continues command processing.

!The contents set with the MODE SELECT and Set Features commands remain unchanged.

!ATAPI reset

!The ODD is reset with a DEVICE RESET command. The ODD interrupts the current command.

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Fujitsu MCE3130AP, MCF3064AP, MCE3064AP manual Various Processes Reset response
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