Fujitsu MB2198-169-E Operation Manual page 20

Dsu-fr emulator pseudo power-on debug adapter
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■ Pseudo power-on debug function specifications
The specifications of the pseudo power-on debug function are shown in Table 6.
Item
Follows the user power supply voltage (UVDDE)
MCU
down to the threshold voltage (V
power supply
the threshold voltage (V
(BVDDE) output
ply drops below this.
The threshold voltage (V
Threshold voltage
to 4V when shipped).
Outputs a reset signal when the user power supply voltage (UVDDE) drops below the user power
User power supply
supply monitoring reset voltage (Vr). The user power supply monitoring reset voltage (Vr) can be
monitoring reset
adjusted through the range 1.7V to 5V (Preset to 3V when shipped).
Reset signals generated by the user power supply monitoring circuit and signals input from the user
User reset
reset are treated as user resets.
Equipped with a POWER LED that shows the state of the pseudo power-on debug adapter power
LED
supply and a USER POWER LED that shows the state of the user power supply.
■ Display function specifications
The display function specifications are shown in Table 7.
Item
POWER LED
USER POWER LED
■ Connector specifications
The connector specifications are shown in Table 8.
Item
Power supply
Connects to the AC adapter included with the product.
connector
Adapter
Connects the pseudo power-on debug adapter to the adapter board.
Refer to "4. Connections, ■ Connecting to the adapter board" for de-
interface
connector
tails on how to connect the adapter board.
Header
Connects the pseudo power-on debug adapter to the header board. Re-
fer to "4. Connections, ■ Connecting to the header board" for details
interface
connector
on how to connect the header board.
14
Table 6 Pseudo power-on debug function specifications
) when the user power sup-
S
) can be adjusted through the range 3.3V to 4.3V using a trimpot (Preset
S
Table 7 Display function specifications
Shows the state of the power supply (DCIN) of the pseudo power-on debug adapter.
Shows the state of the power supplied by the user system (UVDDE).
Table 8 Connector specifications
Description
Description
When UVDDE ≤ V
), and maintains
S
When UVDDE > V
Description
, BVDDE = V
S
S
, BVDDE = UVDDE
S
Remarks
DC jack
Set of 2 × 120-pin straight
connectors
Set of 2 × 120-pin straight
connectors

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