Technical information

5. CONNECTION
S1C33 Family In-Circuit Debugger EPSON 21
S5U1C33001H1400 Manual (Rev. 0.20)
30-pin connector
No. Pin
name
I/O Pin function No. Pin
name
I/O Pin function
1 GND - Power supply (GND) 16 DST2 I Bus trace status 2 signal
2 DCLK I Clock for debugging 17 DTS1 I Bus trace status 1 signal
3 GND - Power supply (GND) 18 DTS0 I Bus trace status 0 signal
4 DSIO I/O Serial I/O signal for debugging 19 GND - Power supply (GND)
5 GND - Power supply (GND) 20 DTD7 I Bus trace data 7 signal
6 DST2 I Debug status 2 signal 21 DTD6 I Bus trace data 6 signal
7 GND - Power supply (GND) 22 DTD5 I Bus trace data 5 signal
8 DST1 I Debug status 1 signal 23 DTD4 I Bus trace data 4 signal
9 GND - Power supply (GND) 24 GND - Power supply (GND)
10 DST0 I Debug status 0 signal 25 DTD3 I Bus trace data 3 signal
11 GND - Power supply (GND) 26 DTD2 I Bus trace data 2 signal
12 DPCO I PC signal 27 DTD1 I Bus trace data 1 signal
13 GND - Power supply (GND) 28 DTD0 I Bus trace data 0 signal
14 DTS4 I Bus trace status 4 signal 29 GND - Power supply (GND)
15 DTS3 I Bus trace status 3 signal 30 DBT I
Bus break trigger signal
Notes:
• The signals connected to the S5U1C33001H are very high-speed signals, so the target connector must be mounted
within 5 cm from the S1C33xxx. If there is more distance between the connector and the S1C33xxx chip, the
S5U1C33001H may not work properly.
• A 33 Ω resistor must be connected in series to the DSIO signal line between the connector and the S1C33xxx chip.
The resistor should be placed as close to the S1C33xxx as possible.
• Be sure to use the supplied 10-pin or 4-pin, or 30-pin cable for Connecting the target system to the S5U1C33001H.
Using another cable may cause a malfunction. Furthermore, do not use the 30-pin cable and 10-pin or 4-pin cable
simultaneously.
• Disable the trace function of the S5U1C33001H using DIP switch 4 in the following cases:
- when using the 4-pin cable and connector.
- when the signals (DST0, DST1, DPCO) necessary for tracing are not connected even if the 30-pin or 10-pin cable
and connector is used.
- when the trace function is not used due to some reason even if the 30-pin or 10-pin cable and connector is used
and all the signals are connected.
• The 4-pin connector does not have a projection for preventing reverse insertion. Check the cable marker of pin 1 to be
sure the insertion of connector is proper when connecting it to the target system.
• The product package does not include a 30-pin cable or the corresponding connector. Please contact us if you need
this cable or the corresponding connector.
Fig. 9 Connecting with 4-pin connectors