TPCB86SER0000A Interface Card
12
TPCB86SER0000A Interface Card
This interface card is used in conjunction with the
TICE86SER0000A
J 4
J 3
J P 2
J 1
J 2
L S 1
L S 2
J P 1
V R 1
V R 2
Y 1
The external clock source has two modes, RC and Crystal. If a crystal clock is to be
used, positions 2 and 3 should be shorted on JP1 and a suitable crystal inserted into
location Y1. Otherwise, if an RC clock is to be used, positions 1 and 2 should be
shorted and the system frequency adjusted using VR1. Refer to the Tools/Mask
Option menu of the HT-IDE3000 User
′
s Guide for the clock source and system
frequency selection.
A speaker can be attached to LS1 or LS2 to obtain an audio voice output. If a higher
quality amplified voice output is required, connect the speaker to LS1. Here the
volume can be adjusted using VR2. However, a jumper must first be placed on J3 to
select the port pin, which is to be used to enable the interface card
′
s HT82V733 audio
amplifier. The user program can now enable the HT82V733 amplifier by driving this
same pin low. Otherwise, connect the speaker to LS2 only.
