ACS8514 SETS Buddy
ADVANCED COMMS & SENSING FINAL
DATASHEET
Address(hex): 7F
Register Name cnfg_uPsel
Bit 7
Bit 6
Description
Bit 5
Bit 4
(R/W)* Register reflecting the Default Value
value on the UPSEL device pins
following reset, and writeable in
EPROM mode.
Bit 3
Bit 2
Bit 1
0000 0000**
Bit 0
upsel_value
Bit No.
Description
Bit Value Value Description
[7:3]
Not used.
-
-
[2:0]
upsel_value
000
Not used.
This register defaults to reflecting the value present
001
Interface in EPROM boot mode.
on the UPSEL pins of the device at reset. At reset this
010
Interface in Multiplexed mode.
is used to set the mode of the microprocessor
011
Interface in Intel mode.
interface. Following power-up, these pins have no
100
Interface in Motorola mode.
further effect on the microprocessor interface.
101
Interface in Serial mode.
110
Not used.
*In order that the device can be "booted" from an
111
Not used.
EPROM and subsequently communicate with a
(value at reset)
processor, this register is programmable in EPROM
mode. The value programmed in location 7F of the
EPROM will be the value loaded into this register.
**The default of this register is entirely dependent on
the value of the pins at reset.
All not mentioned addresses should not be written to.
Revision 3.00 April 2007 © Semtech Corp.
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