Specifications

7.6 MANUFACTURING MODE
Manufacturin~ Mode is entered upon powerup when a Jumper
is in place next to the Mother Board LED's. In this mode, loop-back
connectors are used at the ke~board and tablet ports for special tests
that are available ONLY when the Jumper is in place and are executed in
place of the normal I/O self-tests. At the end of the Powerup Self-
Test, the microcode Jumps back to a location in ROM (to be determined)
and executes the entire self-test. This c~cle continues indefinitelw.
Hanufacturin~ Mode is a special mode used b~ the module
manufacturin~ facility durin~ burn-in of the VS100 Mother Board. A
Jumper has been provided which the 68000 reads to determine whether the
module is in a manufacturin~ environment. When the Jumper is in place,
the normal Powerup seGuence is sli~htl~ modified, and error reportin~
is limited solely to the Mother Board LED's. For Manufacturin~ Mode to
function properly, the tollowins loop-back connectors must be in place
BEFORE power is applied:
Tablet I/O
Pin 2 connected to Pin 3
Keyboard I/O Pin 2 connected to Pin 3
Fibre Optics Optical Loop-Back Connector in Place
The Bit Block Transfer Accelerator Module is optional: The micro-
dia~nostic checks for presence of the module, and skips the BBA self-
test if the module is not present.
The followin~ tests are modified as follows:
1. Fibre Optics Loop-BaCK Test
The electrical loop-back test is now followed b~ an optical
loop-back test, which is the same except for that it reQuires
a special Jumper to be in place.
2. Tablet USART Test
The internal loop-back test is now followed by an external
loop-back test, which is the same except for that it reQuires
a special Jumper to be in place.
3. Ke~board USART Test
The internal lOOP-back test is now followed b~ an external
loop-back test, which is the same except for that it reQuires
a special Jumper to be in place.
The followins tests are deleted:
1. Ke~board ID Test
2. Ke~board Self-Test