S5L1462B Datasheet, PDF (17/43 Pages) Samsung semiconductor – CD and DVD playback

RF SIGNAL PROCESSOR
SERIAL INTERFACE
• The serial interface controls the disc type, speed, AGC, and the on/off of the laser diode.
• The serial interface's timing diagram is as follows.
S5L1462B
STB
DATA
Address, 8-bit
Data, 8-bit
CLOCK
A7
A0 D7
D0
Serial Port Data Transfer Format
 CLOCK : Clock synchronous to the data transmitted from MICOM.
 DATA : Address and data transmitted from MICOM.
 STB : Signal showing that data is enabled.
• Address : 00H
DATA
Function
Initial Value
D7
AGC_HOLD
0
D6
TE_SEL
0
D5
RFSUM_SEL
0
D4
BUF_SEL
0
D3
LDONB
0
D2
AGC_HOLD
0
D1
D0
SPEED_SEL
0
0
AGC1_HOLD(D7): RF AGC Peaking protection selection
0: unuse
1: use
TE_SEL(D6): TRACKING ERROR selection
0: DPD
1: TE3
RFSUM_SEL(D5): RFSUM PORT selection
0: RFSUM input
1: (A, B, C, D) input
BUF_SEL(D4): Input buffer selection (RFSUM port polarity selection)
0: Buffer Bypass
1: Buffer use
LDONB(D3): LASER,ON/OFF control pin
0:LASER OFF
1:LASER ON
AGC1_HOLD: AGC1 peaking protection selection
0: unuse
1: use
SPEED_SEL (D1 - D0) : speed selection
D1
D0
MODE
SPEED_SEL
0
0
DVD
1X
1
0
CD
1X
1
1
CD
2X
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