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RESET/WRITE Switch
This switch functions as both the S5U1C33001H reset switch and as the erase/write switch when the S5U1C33001H is in
flash programmer mode.
VCC SEL Jumper
This jumper selects whether the power supply monitoring function for the power supplied to the target system is used or not.
The power supply monitoring function stops power supply to the target system when the input to the TARGET_VCC pin in
the target power supply connector is 0 V.
Jumper setting
UVCC
VCC OUT
Monitor Pins
• TRC FULL output pin
This is the trace full state output pin. This pin outputs a high level when the trace memory becomes full.
• EMU OUT output pin
This pin outputs a low level when the EMU/ERASE LED is lit (that is, when the program is being executed) and outputs
the 5 V level when that LCD is off (during a break). This signal can be used as the protect signal for the S5U1C33xxxM
emulation memory.
• TRG OUT output pin
The TRG OUT pin outputs the trace trigger signal that indicates the beginning and end of tracing. When using area trace
mode in the S5U1C33001H, two trigger points (trace area start and end addresses) are set up. The TRG OUT pin
outputs a high level when the program execution address reaches the set trace trigger point. Also it outputs a high level
while program execution is suspended. Refer to the "Debugger" section in the "S5U1C33001C Manual (C Compiler
Package for S1C33 Family)" for details on using the trace function.
The figure below shows output timing examples of this signal. Note that the program must be executed in the order of
trace trigger points 1 and 2 to generate trace triggers. The following figure shows conditions that will generate trace
triggers as well as those that will not.
Front panel
5 6 7 8
On
Figure 5 RESET/WRITE Switch
Front panel
5 6 7 8
UVCC
VCC OUT
UVCC
Figure 6 VCC SEL Jumper
Table 8 VCC SEL Setting
The power supply monitoring function is used
The power supply monitoring function is not used
Front panel
Figure 7 Monitor Pins
S5U1C33001H
VCC OUT
Description
(Ver. 4)
7
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