Renesas R8C/15 Technical Information Seite 229

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R8C/14 Group, R8C/15 Group 18. Flash Memory Version
Rev.2.10 Jan 19, 2006 Page 215 of 253
REJ09B0164-0210
18.5.1.1 Example of Circuit Application in the Standard Serial I/O Mode
Figure 18.16 show Pin Process in Standard Serial I/O Mode 2, Figure 18.17 show Pin Process in
Standard Serial I/O Mode 3. Since the controlled pins vary depending on the programmer, refer to the
manual of your serial programmer.
Figure 18.16 Pin Process in Standard Serial I/O Mode 2
Figure 18.17 Pin Process in Standard Serial I/O Mode 3
NOTES:
1. In this example, modes are switched between single-chip mode and
standard serial I/O mode by controlling the MODE input with a switch.
2. Connecting the oscillation is necessary. Set the main clock frequency 1
MHz to 20 MHz. Refer to Appendix 2.1 Connecting examples with M16C
Flash Starter (M3A-0806).
Microcomputer
TXD
RXD
Data Output
Data Input
MODE
NOTES:
1. Controlled pins and external circuits vary depending on the programmer.
Refer to the programmer manual for details.
2. In this example, modes are switched between single-chip mode and
standard serial I/O mode by connecting a programmer.
3. When operating with on-chip oscillator clock, connecting the oscillating
circuit is not necessary.
Microcomputer
MODE
RESET
User Reset Signal
MODE I/O
Reset Input
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