3.3.3. Parallel port settings dialog

This section describes how you use the Port Settings dialog. This is accessed from the Settings menu.

Figure 3.12. The Port Settings dialog

The Port Settings dialog

The dialog box contains the following items:

Port Address

Is the parallel port address to be used. Can be one of:

AUTO

Automatically selects the parallel port to use.

LPT1

Selects LPT1 as the parallel port to use.

LPT2

Selects LPT2 as the parallel port to use.

Note

You must connect the Multi-ICE interface to a parallel port that uses standard parallel port hardware at addresses 0x278 or 0x378.

Force 4-bit access

Forces the parallel port to use 4-bit data transfer.

Current Port Mode

This item indicates the operational mode of the parallel port. Many parallel ports can operate in one of several modes, defined by the BIOS settings. See your computer hardware manual for more information. Multi-ICE understands the following parallel port modes:

4-bit

Basic unidirectional parallel port.

8-bit

8-bit bidirectional parallel port.

ECP

Enhanced Capability Port. This mode is faster than 8-bit mode because it is possible to use block data transfers.

Multi-ICE does not understand the Enhanced Parallel Port (EPP) mode, and uses these ports in bidirectional 8-bit mode. Multi-ICE can use an IEEE 1284 port in ECP compatibility mode.

Note

  • The Windows 95, Windows 98, and Windows Me drivers do not use ECP mode because the ECP-aware parallel port driver interferes with the operation of the Multi-ICE parallel port driver.

  • Some machines might exhibit random communication failures due to nonconforming parallel ports. If you have difficulty in connecting to the Multi-ICE hardware, or experience timeout errors during operation, try forcing 4-bit access.

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