FS-925 Digi International, FS-925 Datasheet - Page 15
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FS-925
Manufacturer Part Number
FS-925
Description
JTAG-BOOSTER FOR 386EX 5V
Manufacturer
Digi International
Series
Digi/FS Forthr
Type
FLASHr
Datasheet
1.FS-977.pdf
(56 pages)
Specifications of FS-925
Contents
Programmer and Associated Interface Software
For Use With/related Products
Intel 386EX, 5V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
JTAG-Booster for Intel 386EX
Pins specified with /I2CCLK= and /I2CDAT= must have different
control cells
The pin specified with the option /I2CDAT= must be able to be switched to
high impedance while the pin specified with option /I2CCLK= is an active
output. See chapter 1.8 “Initialization file JTAG386.INI”.
Pins specified with /I2CCLK= and /I2CDATI= must have different
control cells
The pin specified with the option /I2CDATI= must be able to be switched to
high impedance while the pin specified with option /I2CCLK= is an active
output. See chapter 1.8 “Initialization file JTAG386.INI”.
Pins specified with /I2CDATO= and /I2CDATI= must have different
control cells
The pin specified with the option /I2CDATI= must be able to be switched to
high impedance while the pin specified with option /I2CDATO= is an active
output. See chapter 1.8 “Initialization file JTAG386.INI”.
Specify only one of that options:
Some options are exclusive (i.e. /8BIT and /16BIT). Don't mix them.
Sum of instruction register bits to low. Should be at least 4 bits for a
Intel 386EX
The sum of all instruction register bits in the JTAG chain does not fit to the
Intel 386EX. Check the target connection. Check the target CPU type. Check
the settings for /IROFFS= and /CPUPOS= , if there are several parts in
the JTAG chain.
Target no longer connected
There is a cyclic check of the JTAG chain. Check target power. Check target
connection.
There are unknown parts in the JTAG chain. Please use the option
/IROFFS= to specify the instr. reg. offset of the CPU.
If there are unknown parts in the JTAG chain, the program isn’t able to
determine the logical position of the CPU’s instruction register.
JTAG_386EXa.doc
15