SAA7385GP Philips Semiconductors, SAA7385GP Datasheet - Page 17

• Manufacturer Part Number: SAA7385GP
• Description: Error correction and host interface IC for CD-ROM SEQUOIA
• Manufacturer: Philips Semiconductors

Philips Semiconductors
8
8.1
Table 1 NUM_COR register: 0xF08E
Register 0xF08E indicates the number of corrections performed during the most recently executed
CORRECT_P_SYNDROMES or CORRECT_Q_SYNDROMES command. Note that NUM_COR is only valid after
completion of the CORRECT_P_SYNDROMES or CORRECT_Q_SYNDROMES command, and becomes invalid upon
execution of any other command.
Table 2 ECC_STATUS register: 0xF086
Register 0xF086 provides status information on the current or last ECC command.
Table 3 ECC_STATUS definitions
8.2
Table 4 ECCCTL register: 0xF085
The ECC_COMMAND definitions are explained in Table 5.
1996 Jun 19
ECC_STATUS
ECC_ACT
QS_EQ0
PS_EQ0
CRC_EQ0
FLG_EQ0
MNEMONIC
MNEMONIC
MNEMONIC
MNEMONIC
Error correction and host interface IC for
CD-ROM (SEQUOIA)
NUM_COR
ECCCTL
MICROCONTROLLER INTERFACE
Microcontroller interface status register
Microcontroller interface command register
asserted while a command other than ASSERT_ABORT or RELEASE_ABORT remains active
asserted when all Q syndromes are zero
asserted when all P syndromes are zero
asserted when the CRC remainder calculated by the CRC_CALCULATE command is all zeros
asserted when all flag bytes in ECC RAM are zero
R/W
R/W
R/W
R/W
R
R
7
7
7
6
6
6
5
5
5
NUM_COR7 to NUM_COR0
FLG_EQ0 CRC_EQ0
17
DESCRIPTION
4
4
4
DATA BYTE
DATA BYTE
DATA BYTE
ECC_COMMAND3 to ECC_COMMAND0
3
3
3
PS_EQ0
2
2
2
Preliminary specification
QS_EQ0
1
1
1
SAA7385
ECC_ACT
0
0
0