W83759A Datasheet, PDF (12/41 Pages) Winbond – ADVANCED VL-IDE DISK CONTROLLER

W83759A
CRX80h (POSS1)
Bit7
Bit6
ADV
SP1
Read Only
Bit5
MD1
Power-on Setting Status 1
Bit4
MD0
Bit3
Bit2
PRDYEN SRDYEN
Bit1
IDEN1
Bit0
IDEN0
Bit 7
Bit 6
Bit 5, 4 MD1, MD0
ADV
0
1
SP1
0
1
Bit 3
PRDYEN
Bit 2
SRDYEN
Bit 1, 0
IDEN1, IDEN0
when ADV_P
=0
Power-on setting value of ADV pin
Initial application mode
No advanced mode application
Advanced mode application
Power-on setting value of IDEA0 pin
Select VESA bus operating CLK
VLCLK 33 MHz
VLCLK > 33 MHz
Power-on setting value of IDEA2, IDEA1 pin
Default HDD host transfer mode
MD1 MD0
0 0 Mode 0 (cycle time = 600 nS)
0
1 Mode 0+ (cycle time = 500 nS)
1
0 Mode 1 (cycle time = 400 nS)
1
1 Mode 2 (cycle time = 240 nS)
Power-on setting value of IDE0CS0 pin
Initial state of primary channel IOCHRDY flow control
0 Disable IOCHRDY flow control
1 Enable IOCHRDY flow control
Power-on setting value of IDE0CS1 pin
Initial state of secondary channel IOCHRDY flow control
0
Disable IOCHRDY flow control
1
Enable IOCHRDY flow control
Power-on setting value of IDE1CS1, IDE1CS0 pins
Initial state of IDE ENable control
IDEN1
X
IDEN0
0
Primary IDE Secondary IDE
disabled
disabled
0
1
enabled
disabled
1
1
enabled
enabled
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