Holt Integrated Circuits
6
Default Jumper Settings
HI-620x3 Board
JUMPER
POSITION
DESCRIPTION
JP1
OFF
Link to send clock to ARM board (not normally used).
JP2
ON
Ground BUSA negative line.
JP3
ON
Grounds TEST pin (disables test mode)
JP4
ON
Ground BUSB negative line.
JP5
OFF
BENDI: ON, Little Endian Data
OFF, Big Endian Data
JP6
ON
WPOL: ON, WAIT pin is active low
OFF, WAIT pin is active high
JP7
OFF
BWIDE: ON, Bus width is set to 8 bits
OFF, , Bus width is set to 16 bits
JP8
OFF
BTYPE: ON, Motorola type data bus
OFF, Intel type data bus
JP9
ON
BUSB LOAD: ON, 70
Ω
Load connected
OFF, 70
Ω
Load disconnected
JP10
ON
BUSA LOAD: ON, 70
Ω
Load connected
OFF, 70
Ω
Load disconnected
JP11, JP13
ON
Transformer 1:2.5 ratio selected
JP12, JP14
OFF
Transformer unused option
J7
OFF
Connect to disable on board oscillator (use when an
external clock is connected to J4)
Содержание ADK-620x3
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