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參數(shù)資料
| 型號： | SAA7390 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | High performance Compact Disc-Recordable CD-R controller |
| 中文描述： | 高性能式光盤CD - R光盤控制器 |
| 文件頁數(shù)： | 18/76頁 |
| 文件大?。?/td> | 366K |
| 代理商： | SAA7390 |
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1996 Jul 02
18
Philips Semiconductors
Preliminary specification
High performance Compact
Disc-Recordable (CD-R) controller
SAA7390
Table 3
ECCSTAT definitions
8.2
Microcontroller interface command register
Table 4
ECCCTL register: 0xF085; note 1
Note
1.
The ECC_COMMAND definitions are explained in Table 5.
Table 5
Definitions of ECC_COMMAND3 to ECC_COMMAND0
Table 6
Command descriptions
MNEMONIC
DESCRIPTION
ECC_ACT
QS_EQ0
PS_EQ0
CRC_EQ0
FLG_EQ0
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
MNEMONIC
R/W
DATA BYTE
7
6
5
4
3
2
1
0
ECCCTL
R/W
ECC_COMMAND3 to ECC_COMMAND0
EEC_COMMAND
DESCRIPTION
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1100
1101
1110
ASSERT_ABORT
RELEASE_ABORT
CALCULATE_SYNDROMES (not Mode 2, Form 1)
CALCULATE_SYNDROMES (Mode 2, Form 1)
CRC_RECALCULATE (not Mode 2, Form 1)
CRC_RECALCULATE (Mode 2, Form 1)
COPY_RESULTS (not Mode 2, Form 1)
COPY_RESULTS (Mode 2, Form 1)
CORRECT_P_SYNDROMES
CORRECT_Q_SYNDROMES
TEST_ECC_ROM
TEST_ECC_RAM_READ
TEST_ECC_RAM_WRITE
COMMAND
DESCRIPTION
ASSERT_ABORT
Terminates any currently active operation and re-initializes the ECC logic. Remains in
reset state until occurrence of the RELEASE_ABORT command. At power-on reset,
the ECC is in the ASSERT_ABORT state. All microprocessor status bits are reset
when the ECC is in the ASSERT_ABORT state.
Terminates the ASSERT_ABORT command and enables activation of other
commands.
RELEASE_ABORT
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