Data details

7.2.1 Basic data

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Title data specifications

Data basic data

Data Name

No 1.0

(1) Basic data type

Model name	explanation
Uint8	unsigned 1-byte integer
Sint8	Signed 1-byte integer
Uint16	unsigned 2-byte integer
Sint16	signed 2-byte integer
Uint32	unsigned 4-byte integer
Sint32	signed 4-byte integer
Boo1	Logical type 4-byte integer (value is a logical constant)

(2) Logical constant

Use as a logical type (Bool) value.

constant name	value	explanation
FALSE TRUE	0 1	Represents a logical false value. Represents the truth of a logical value.
OFF ON	0 1	Represents switch off (false). Represents switch on (true).

(3) Others

constant name	value	explanation
NULL	((void*)0)	NULL pointer

7.2.2 Constants

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Title data specifications

Data Constant (1/2)

Data Name Constant

No 2.0

(1) Bit names related to interrupt factor registers (HIRQREQ, HIRQMSK)

bit  7  6  5  4  3  2  1  0
    [ ][ ][ ][ ][ ][ ][ ][ ]
     |  |  |  |  |  |  |  |
     |  |  |  |  |  |  |  +---- CDC_HIRQ_CMOK  1:Commands can be issued
     |  |  |  |  |  |  +------- CDC_HIRQ_DRDY  1:Ready for data transfer
     |  |  |  |  |  +---------- CDC_HIRQ_CSCT  1:1 sector read completed
     |  |  |  |  +------------- CDC_HIRQ_BFUL  1:CD buffer full
     |  |  |  +---------------- CDC_HIRQ_PEND  1:CD playback finished
     |  |  +------------------- CDC_HIRQ_DCHG  1:Disk replacement occurred
     |  +---------------------- CDC_HIRQ_ESEL  1:End of selector setting processing
     +------------------------- CDC_HIRQ_EHST  1:End of host input/output processing

bit 15 14 13 12 11 10  9  8
    [-][-][ ][ ][ ][ ][ ][ ]
           |  |  |  |  |  |
           |  |  |  |  |  +---- CDC_HIRQ_ECPY  1:End of copy/move processing
           |  |  |  |  +------- CDC_HIRQ_EFLS  1:End of file system processing
           |  |  |  +---------- CDC_HIRQ_SCDQ  1:Subcode Q update completed
           |  |  +------------- CDC_HIRQ_MPED  1:MPEG related processing completed
           |  +---------------- CDC_HIRQ_MPCM  1:End of MPEG malfunction section
           +------------------- CDC_HIRQ_MPST  1:Notification of MPEG interrupt status

(2) Error code

constant name	explanation
CDC_ERR_OK	The function completed normally.
CDC_ERR_CMDBUSY	The command end flag is not set to 1 when the command is issued. Target: All functions that check the command end flag
CDC_ERR_CMDNG	The CMOK flag is not set to 1 when issuing the command. Target: All functions that issue commands
CDC_ERR_TMOUT	Timed out. (Waiting for response, waiting for data transfer preparation) Target: All functions that issue commands CDC_GetPeriStat function, CDC_DataReady function
CDC_ERR_PUT	Empty while waiting for data transfer preparation by writing sector data. could not secure a suitable sector. Target: CDC_DataReady function after executing CDC_PutSctData function
CDC_ERR_REJECT	The response to the command was REJECT. Target: All functions that issue commands
CDC_ERR_WAIT	The response to the command was WAIT. Target: All functions that issue commands
CDC_ERR_TRNS	Data transfer size is abnormal. Target: Functions that transfer data internally (functions starting with CDC_Tget)
CDC_ERR_PERI	A regular response could not be obtained. Target: CDC_GetPeriStat function

(3)Special specification of the sector range (sector position and number of sectors) of the buffer partition

constant name	explanation
CDC_SPOS_END	Indicates the last sector position of the partition. Same as specifying (number of sectors in partition - 1).
CDC_SNUM_END	Indicates the number of sectors from the specified sector position SP to the end of the partition. Same as specifying (number of sectors in partition - SP).

Valid in the following functions for buffer partitions.

CDC_CalActSiz

CDC_GetSctInfo

CDC_ExeFadSearch

CDC_GetSctData

CDC_DelSctData

CDC_GetdelSctData

CDC_CopySctData

CDC_MoveSctData

Note

If the number of sectors in the partition is 0, WAIT is always returned regardless of the specification. Before executing these functions, be sure to get the number of sectors in the buffer partition (CDC_GetSctNum) and make sure that the number of sectors is not 0.

(4)Other special designations

constant name	explanation
CDC_PARA_DFL	Specifying default values for configuration parameters (0) Can be used when specifying the default value as 0.
CDC_PARA_NOCHG	Setting parameters unchanged (-1) When specifying unchanged as FFH, FFFFH, most significant bit = 1, etc. Can be used for
CDC_NUL_SEL	Special values for selector numbers (aperture numbers, buffer section numbers)
CDC_NUL_FID	Special values for file identifiers

7.2.3 TOC information/Session information

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Title data specifications

Data TOC information/Session information

Data Name TOC/SES

No 3.0

(1)TOC information……CDC_TgetToc function

(2) Session information……CDC_GetSes function

7.2.4 Subcode information

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Title data specifications

Data Subcode information

Data Name Subcode

No 4.0

(1) Subcode Q information...CDC_TgetScdQch function

(a) When Adr=1

byte	1	2	3	4	5	6	7	8	9	10
	Ctrl Adr	TNO	X	P_FAD			00	Q_FAD			CRC

CtrlAdr	:CONTROL/ADR byte
TNO	: Track number (binary value, not BCD)
X	: Index number (binary value, not BCD)
P_FAD	: Track time (frame address format with track start set to 0)
Q_FAD	: Absolute time (frame address format with 00:00:00 as 0)

The contents for each status are the same as for the CD report.

The values for each TNO are shown in the table below.

(Lead-in and lead-out can be obtained in multiple sessions)

TNO	X	P_FAD
01H~63H (1~99)	01H~63H	Elapsed FAD in the track
AAH (Lead Out)	01H~63H	Elapsed FAD in the track
00H (Lead-in)	01H～63H,A0H,A1H,A2H	000000H

The lead-in for the first session is Q_FAD=000000H.

(Normally not available)

(b) In case of other (ADR≠1):

Raw value of subcode Q (10 bytes excluding CRC)

(2) Subcode R~W information...CDC_TgetScdRwch function

Subcodes R to W are decoded in units of 1 pack (24 bytes = 12 words).
The CD block has an internal pack buffer for 24 packs (6 packets).

7.2.5 Status and Reports

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Title data specifications

Data Status and reports

Data Name Status & CD Report

No 5.0

(1)Response format

The response consists of a status and a report. Whether or not to return CD Report as a report depends on the command. Periodic responses always return a CD report.
Together, the status and CD report are called CD status information.

(2)Status

When the status is FFH, it indicates REJECT (invalid command). The status code is always valid except when REJECT. Also, bit5 to bit7 are exclusive and cannot be 1 at the same time.

bit  7  6  5  4  3  2  1  0
    [ ][ ][ ][-][          ]
     |  |  |    Status code (CD drive status)
     |  |  |
     |  |  +------ CDC_ST_PERI 1: Periodic response         0: Response to command
     |  +--------- CDC_ST_TRNS 1: Data transfer request     0: No request
     +------------ CDC_ST_WAIT 1: WAIT (execution pending)  0: ACK (command successfully received)

(a) Status code (CD drive status)

constant name	value	situation	explanation
CDC_ST_BUSY	00H	〈 BUSY〉	State transition in progress
CDC_ST_PAUSE	01H	〈 PAUSE〉	Pausing (pause)
CDC_ST_STANDBY	02H	〈 STANDBY〉	Standby (drive stopped)
CDC_ST_PLAY	03H	〈 PLAY〉	CD playing
CDC_ST_SEEK	04H	〈 SEEK〉	Seeking in progress
CDC_ST_SCAN	05H	〈 SCAN〉	Scan playback in progress
CDC_ST_OPEN	06H	〈 OPEN〉	tray is open
CDC_ST_NODISC	07H	〈 NODISC〉	no disc
CDC_ST_RETRY	08H	〈 RETRY〉	Read retry processing in progress
CDC_ST_ERROR	09H	〈 ERROR〉	A read data error occurred
CDC_ST_FATAL	0AH	〈 FATAL〉	a fatal error has occurred

(3)CD report

byte	1		2	3	4	5	6	7
CD Report	Flg	Rep Cnt	Ctrl Adr	TNO	X	F.A.D.

Flg	:CD flag (upper 4 bits)...〈 PLAY〉 Valid in state
RepCnt	: Repeat count (lower 4 bits)...Notification range is 0H to EH

bit  7  6  5  4  3  2  1  0
    [ ][-][-][-][          ]
     |           Number of repeats
     |
     +------------ CDC_CDFLG_ROM   1:CD-ROM decoding
                                   0:CD-DA, seek, scan, etc.

CtrlAdr	:CONTROL/ADR byte
TNO	: Track number (binary value, not BCD) based on subcode Q
X	: Index number (binary value, not BCD)
F.A.D.	:Frame address (based on header information for CD-ROM, otherwise based on subcode Q)

(4)CD report contents for each status

The CD drive status and CD report contents are shown below. The sequence FFH means invalid values. (CD report is invalid during REJECT, valid during WAIT.)

situation	CD flag/repeat	CONTROL/ADR	track number	index number	frame address
〈 BUSY〉	○/FFH	○/FFH	○/FFH	○/FFH	○/FFFFFFH
〈 PAUSE〉	○	○	○	○	○
〈 STANDBY〉	Value at pause	Value at pause	Value at pause	Value at pause	Value at pause
When seeking home	FFH	FFH	FFH	FFH	FFFFFFH
〈 PLAY〉	○	○	○	○	○
〈 SEEK〉	○	Target position	Target position	Target position	Target position
〈 SCAN〉	○	○	○	○	○
〈 OPEN〉	FFH	FFH	FFH	FFH	FFFFFFH
〈 NODISC〉	FFH	FFH	FFH	FFH	FFFFFFH
〈 RETRY〉	○	○	○	○	○
〈 ERROR〉	FFH	FFH	FFH	FFH	FFFFFFH
〈 FATAL〉	Indeterminate	Indeterminate	Indeterminate	Indeterminate	Indeterminate

○: Current value Seek home: Seek to home position (stop)

After standby time has elapsed〈 PAUSE〉 from〈 STANDBY〉 If the state is changed, the value at the time of pause is retained.

(5) If the CD report contents are invalid values

1. The previous value for the repeat count is retained. Transitioning to another state reverts to the held value.

2. From Seek Home〈 PAUSE〉 When the state changes, it moves to the beginning of the disk (FAD = 150).

3. 〈 ERROR〉 The previous value is retained.<PAUSE> When transitioning to a state, it reverts to its retained value.

4. When the state transitions, the<BUSY> The state may return an invalid value.
   surely〈 BUSY〉 Please refer to the CD report contents after confirming that the status is other than that.