w83l517g Winbond Electronics Corp America, w83l517g Datasheet - Page 100

• Manufacturer Part Number: w83l517g
• Description: Winbond Lpc I/o For Notebook W83l517d/ W83l517d-f
• Manufacturer: Winbond Electronics Corp America

Bit 5-3: Reflect the IRQ resource assigned for ECP port.
Bit 2-0: These five bits are at high level during a read and can be written
9.3.10 ecr (Extended Control Register) Mode = all
This register controls the extended ECP parallel port functions. The bit definitions are follows:
Bit 7-5: These bits are read/write and select the mode.
000
001
010
011
100
101
cnfgB[5:3]
000
001
010
011
100
101
110
111
Standard Parallel Port mode. The FIFO is reset in this mode.
PS/2 Parallel Port mode. This is the same as 000 except that direction may be used
to tri-state the data lines and reading the data register returns the value on the data
lines and not the value in the data register.
Parallel Port FIFO mode. This is the same as 000 except that bytes are written or
DMAed to the FIFO. FIFO data are automatically transmitted using the standard
parallel port protocol. This mode is useful only when direction is 0.
ECP Parallel Port Mode. When the direction is 0 (forward direction), bytes placed
into the ecpDFifo and bytes written to the ecpAFifo are placed in a single FIFO and
auto transmitted to the peripheral using ECP Protocol. When the direction is 1
(reverse direction), bytes are moved from the ECP parallel port and packed into
bytes in the ecpDFifo.
Selects EPP Mode. In this mode, EPP is activated if the EPP mode is selected.
Reserved.
7
reflect other IRQ resources selected by PnP register (default)
6
5
4
- 100 -
3
2
IRQ resource
W83L517D/W83L517D-F
1
IRQ10
IRQ11
IRQ14
IRQ15
IRQ7
IRQ9
IRQ5
0
empty
full
service Intr
dmaEn
nErrIntrEn
MODE
MODE
MODE
.