Technical information

4. NAME AND FUNCTION OF EACH PART
S1C33 Family In-Circuit Debugger EPSON 13
S5U1C33001H1400 Manual (Rev. 0.20)
• Selecting DSIO signal (SW4, SW5)
Table 3-3 DIP SW4 and SW5 settings
SW4 SW5 Setting
OPEN OPEN 3.3 V (default)
OPEN ON 1.8 V
ON OPEN Target system input voltage (1.0 to 5.0 V)
ON ON Target system input voltage (1.0 to 5.0 V)
Target system operating voltage applied to Pin No. 4 of the connector for flash programmer power supply.
• Selecting connection test (SW6)
Table 3-4 DIP SW6 setting
SW6 Setting
OPEN Connection test disabled (default)
ON Connection test enabled
Connection test: A communication check test is performed at the time of debugger invocation.
• Selecting firmware update mode (SW7)
Table 3-5 DIP SW7 setting
SW7 Setting
OPEN Off (default)
ON On
Turning this DIP switch ON enables connections between the S5U1C33001H and debugger without a target system. For
a discussion of how to update the firmware, refer to “Firmware Update.”
• Selecting flash programming voltage output (SW8)
Table 3-6 DIP SW8 setting
SW8 Setting
OPEN Off
ON On
Note: The S5U1C1700H incorporates a 7-V, 200-mA power supply for flash programming. However, use of this power
supply may not be possible with certain S1C processors. If the technical manual for the target S1C processor
does not specifically mention this power supply, damage may occur in the chip due to overvoltage. To prevent this
problem, avoid using this voltage (do not set the DIP SW8 to ON) if this voltage is not supported by the target S1C
processor.