Function details-4

8.2.4 CD-ROM Device

one View table

Title function specification

Function Setting the CD device connection destination

Function Name［SR］ CDC_CdSetCon

No 4.1

Format

Sint32 CDC_CdSetCon(Sint32 filtno)

input

filtno: Connection destination aperture number (CDC_NUL_SEL: Indicates disconnection)

output

none

function value

Returns an error code. End flag ESEL flag

function

Set the connection destination (aperture) for the CD-ROM device. Specifying CDC_NUL_SEL will disconnect the connection.

one View table

Title function specification

Function Obtaining the connection destination of the CD device

Function Name［S-］ CDC_CdGetCon

No 4.2

Format

Sint32 CDC_CdGetCon(Sint32 *filtno)

input

none

output

filtno: Connection destination aperture number (CDC_NUL_SEL: Indicates not connected)

function value

Returns an error code.

function

Gets the connection destination (aperture) of the CD-ROM device. Returns CDC_NUL_SEL if not connected.

one View table

Title function specification

Function Obtaining the buffer section of the last read sector

Function Name［S-］ CDC_CdGetLastBuf

No 4.3

Format

Sint32 CDC_CdGetLastBuf(Sint32 *bufno)

input

none

output

bufno: Storage destination buffer section number (CDC_NUL_SEL: Indicates not stored)

function value

Returns an error code.

function

Gets the buffer partition number where the last sector read from the CD-ROM is stored. Returns CDC_NUL_SEL if it is not stored in the buffer section (erased).

remarks

By executing in synchronization with the CSCT flag of the interrupt factor register, the stream read from the CD-ROM can be processed one sector at a time.