cxd1196ar Sony Electronics, cxd1196ar Datasheet - Page 24

• Manufacturer Part Number: cxd1196ar
• Description: Cd-rom Decoder
• Manufacturer: Sony Electronics

2.2.6
2.2.7
2.2.8
2.2.9
2.2.10 MODE/FORM (MDFM) Register
2.2.11 ADPCI (ADPCM Coding Information) Register
It is a 4-byte register indicating the Header byte of the current sector. The CPU can find the value of the
Header byte of the current sector from the Minute byte as it sets the REGADR register at X4 hex and
successively reads data.
It is a 4-byte register indicating the Sub Header byte of the current sector. The CPU can find the value of
the Sub Header byte of the current sector from the File byte as it sets the REGADR register at 08 hex and
successively reads data.
Indicates the buffer memory address where the Minute bytes of the current sector (after correction) is in
store.
Bit4-2
Bit1
Bit0
Bit7
Bit6
Bit5
Bit4
Bit2
Bit0
Header (HDR) Register
Sub Header (SHDR) Register
Current Minute Address L (CMADR-L) Register
Current Minute Address H (CMADR-H) Register
RMODE2 : Indicates the logic sum of the value of the high-order 6 bits of the raw MODE byte and the
pointer.
RMODE1, 0 : Respectively indicate the values of the low-order 2 bits of the raw MODE byte.
CMODE (Correction Mode)
CFORM (Correction Form)
These bits indicate which of the MODEs and FORMs this IC determined that the current sector was
associated with when it corrected errors.
MUTE
This bit goes ‘H’ when the DA data is muted on.
EMPHASIS
This bit goes ‘H’ when the ADPCM data is emphasized.
EOR (End of Record)
This bit goes ‘H’ when the Sub Mode byte bit0 = ‘H’ and there is no error in the Sub Mode byte.
BITLNGTH (Bit Length)
This bit indicates the bit length of ADPCM playback coding information.
‘H’
‘L’
FS (Sampling Frequency)
This bit indicates the ADPCM playback sampling frequency.
‘H’
‘L’
M/S (MONO/STEREO)
This bit indicates “monaural” or “stereo” of ADPCM playback coding information.
‘H’
‘L’
RMODE2-0
:
:
:
:
:
:
8 bits
4 bits
18.9 kHz
37.8 kHz
Stereo
Monaural
CFORM
‘X’
‘H’
‘L’
CMODE
‘H’
‘H’
‘L’
—24—
MODE2, FORM1
MODE2, FORM2
MODE1
CXD1196AR