WL102 データシートの表示（PDF） - Mitel Networks

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WL102

Wireless Data Controller

Mitel Networks 

WL102

Advance Information

Counters

The two 16-bit counters are provided which are configured

by setting a reload value. When enabled, the counters

decrement continuously at 10MHz, generating a terminal

count signal to the processor and automatically reloading

the reload value when the count reaches zero.

The terminal count outputs are internally connected to the

8051 timer inputs when using the internal 8051, and to

external pins when using an external processor.

Power Control

A power-down function is provided under the control of the

WL102 system. Power down enable signals are provided

to each major block; the clocks of the individual blocks

being disabled when the appropriate power down bit is set.

In addition, the internal processor's PCON register will

disable the 8051 core in the usual manner.

System Supply Voltages

The WL102 has two separate digital supply rails, allowing

for use in mixed 3V/5V systems. The host interface has its

own independent supply, whilst a second supply powers

the core of the WL102 and its interface to the memory and

radio transceiver subsystems. Both power supplies may

be operated at either 3 or 5 volts (nominal), with the

restriction that the host interface supply voltage must be

greater than or equal to the voltage powering the WL102

core and radio transceiver.

Manufacturing Enhancements

Radio Test Mode

The WL102 radio test mode of operation allows an

attached radio transceiver to be tested more easily in a

complete assembled unit. The mode is selected by

configuring the test mode pins. In this mode the usual

functions of the WL102 are suspended and the control and

status signals of the CCB radio interface are connected to

the pins of the Host interface, with the WL102 providing the

status signals back from the radio interface. The

comparators on the receive data stream are still used and

so the test system is provided with the digital version of this

radio output. In addition the operation of the CCB preamble

and frame word recognition can be tested, as well as the

clock recovery data stream.

MCB Execute Mode

This mode of operation is used to allow programming of the

external code memory if a re-programmable device is

used, via special software run on the Host. Using this

mode, the WL102's code memory is completely

reprogrammed regardless of its current state i.e. no 'boot-

block' code is required in the WL102 system. This allows

complete radio modules to be manufactured without the

need for preprogramming the code memory. At final test

the MAC software image can be downloaded or test

software can be downloaded and used prior to the final

software.

This facility also allows the complete radio module to be

upgraded in the field or for diagnostic software to be

downloaded as necessary.

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