Asus L2E L2E User Manual English Edition - Page 70

Configuring the BIOS, Parallel Port: [378H/IRQ7], Mode: [ECP+EPP], DMA Channel: [3]

Get Asus L2E PDF manuals and user guides View all Asus L2E manuals
Add to My Manuals
Save this manual to your list of manuals

Page 70 highlights

5 Configuring the BIOS Parallel Port: [378H/IRQ7] This field allows you to configure the Notebook PC parallel port. The configuration options are: [Disabled] [378H/IRQ7] [278H/IRQ5] Mode: [ECP+EPP] The Mode field allows you to configure the Notebook PC parallel port transmission mode. The configuration options are: [Normal] [EPP] [ECP] [ECP+EPP] EPP Mode: When the EPP mode is selected, the standard and bidirectional modes are also available. The EPP operates on a two phase cycle. First, the host selects the register within a device for subsequent operations. Second, the host performs a series of read and/or write byte operations to the selected register. There are four operations supported by EPP: Address Write, Data Write, Address Read, and Data Read. All operations are performed asynchronously. ECP Mode: The port is both software and hardware compatible with existing parallel ports so that it may be used as a standard printer mode if ECP is not required. ECP mode provides an automatic high burst-bandwidth channel that supports DMA for ECP in both the forward (host to peripheral) and reverse (peripheral to host) direction. DMA Channel: [3] The DMA Channel field allows you to configure the Parallel port DMA Channel for the selected ECP mode. The configuration options are: [1] [3] NOTE: After using the legend keys to make your selections for the I/O Device Configuration sub-menu, press the [Esc] key to exit back to the Advanced menu. 70

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
70
5
Configuring the BIOS
Parallel Port: [378H/IRQ7]
This field allows you to configure the Notebook PC parallel port. The configuration options are: [Dis-
abled] [378H/IRQ7] [278H/IRQ5]
Mode: [ECP+EPP]
The
Mode
field allows you to configure the Notebook PC parallel port transmission mode. The
configuration options are: [Normal] [EPP] [ECP] [ECP+EPP]
EPP Mode:
When the
EPP
mode is selected, the standard and bidirectional modes are also avail-
able. The EPP operates on a two phase cycle. First, the host selects the register within a device for
subsequent operations. Second, the host performs a series of read and/or write byte operations to
the selected register. There are four operations supported by EPP: Address Write, Data Write,
Address Read, and Data Read. All operations are performed asynchronously.
ECP Mode:
The port is both software and hardware compatible with existing parallel ports so that
it may be used as a standard printer mode if ECP is not required. ECP mode provides an automatic
high burst-bandwidth channel that supports DMA for ECP in both the forward (host to peripheral)
and reverse (peripheral to host) direction.
DMA Channel: [3]
The
DMA Channel
field allows you to configure the Parallel port DMA Channel for the selected
ECP
mode. The configuration options are: [1] [3]
NOTE: After using the legend keys to make your selections for the I/O Device Con-
figuration sub-menu, press the [Esc] key to exit back to the Advanced menu.