Zilog Z8F0411 - Manual (Page 27)

MDS General-Purpose Board Development Kit
User Manual
UM016905-1207 MDS-GP Board Features
22
Relay/High Drive Outputs
Figure 10 displays the two relays and six high-drive outputs included on
the MDS-GP board. By default, jumper J27 is set to route the 9 V to 12 V
DC power input to both the relays and the high-drive outputs. If 5 V DC is
used to power the MDS-GP board, then connect Pin 2 and Pin 3 on
jumper J27 to apply 5 V DC on the high-drive outputs.
The two relays installed on the board are 12 V DC types. These relays are
only supported when the 9 V to 12 V DC power supply input is used (see
Figure 10 ).
J26 LCD_Sel Data Control for
LCD OFF Install this jumper to select I 2 C
control of the LCD control pins.
J28 BL LCD BackLight 1, 2 This jumper selects the LCD back
light control. Jumper pins 2, 3 for
software control of backlight.
J29 ADC_POT POT Select ON This jumper connects the
on-board potentiometer to one
ADC input.
Table 3. Miscellaneous Jumper Settings (Continued)
Jumper Symbol Name
Factory
Default
Function