Spectrum Digital, Inc
3.4 Switches
The EVM has nine (9) switches. The function of these switches are shown in the table
below.
Table 28: Switches
Switch
SW1
SW5
SW6
SW7
SW10
SW11
SW12
SW13
SW14
Function
EMU0/EMU1 Control
Reset
User Readable
ARM Boot Mode Select
User Readable
User Readable
User Readable
User Readable
User Readable
Type
4 Position DIP
Push Button/Momentary
4 Position DIP
2 Position DIP
Push Button/Momentary
Push Button/Momentary
Push Button/Momentary
Push Button/Momentary
Push Button/Momentary
3.4.1 SW1, EMU0/1 Select Switch
SW1 is a 2 position DIP switch providing 4 options in selecting the state of the EMU0
and EMU1 pins on the TMS320DM355 processor. A view of the switch is shown in the
figure below. The selection options with this switch are in the table below.
Raised NIB
H
S1
EMU1
EMU0
L
Figure 3-19, SW1, EMU0/1 Select Switch
Table 29: SW1, EMU0/1 Select
State at Reset
EMU1 EMU0
Function
L(0)
L(0)
H(1)
H(1)
L(0)
H(1)
L(0)
H(1)
Emulation Debug ARM JTAG Enabled
Not Defined
Not Defined
ICE PICK Mode *
Both ARM & DSP JTAG Enabled
* is the factory shipped configuration
3-25
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