SAA7390GP Philips Semiconductors, SAA7390GP Datasheet - Page 47

• Manufacturer Part Number: SAA7390GP
• Description: High performance Compact Disc-Recordable CD-R controller
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 72 CCTL field descriptions
Table 73 Status register for CDB2: 0xF0DA
Table 74 CCTL field descriptions
1996 Jul 02
RSTA
CDB2ECC
HSH
HSTSH
EOFCDB2
COMACK
ACKINT
SYSSYNC
COMSYNC
COM/SYS
MNEMONIC
High performance Compact
Disc-Recordable (CD-R) controller
CSTAT
(1)
FIELD
(2)
FIELD
R/W
R
LOGIC
0
1
0
1
COM/SYS COMSYNC SYSSYNC ACKINT COMACK
end of frame interrupt from CDB2; generated in both bypass and CD-ROM modes
Acknowledge signal from the basic engine indicating reception of a byte in its register. The
HIGH-to-LOW transition of this signal indicates ‘ready to receive’ and generates an interrupt
to the microcontroller.
indicates a HIGH-to-LOW transition on COMACK; this status is not affected by masking bits
one of the serial synchronization signals
one of the serial synchronization signals
combination of the SYSSYNC and COMSYNC interrupts; control of selection is via SC_CTL
to reset CDB2, first set RSTA HIGH then LOW
when set, enables the ECC RAM to be used by the CDB2 during encoding of ECC parity
header supplied from CDB2
header supplied by host
sub-header supplied from CDB2
sub-header supplied by host
7
6
5
47
DESCRIPTION
DATA BYTE
DESCRIPTION
4
3
2
Preliminary specification
1
SAA7390
EOFCDB2
0