R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 196

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 17.14 Circuit Application in Standard Serial I/O Mode 1
Figure 17.15 Circuit Application in Standard Serial I/O Mode 2
• Example of Circuit Application in the Standard Serial I/O Mode
Jan 27, 2006
Figures 17.14 and 17.15 show examples of circuit application in standard serial I/O mode 1 and
mode 2, respectively. Refer to the serial programmer manual of your programmer to handle pins
controlled by the programmer.
(1) In this example, modes are switched between single-chip mode and standard
(2) Connecting the oscillation is necessary. Set the main clock frequency 1MHz
serial I/O mode by controlling the MODE input with a switch.
to 20 MHz. Refer to "Appendix 2.2 Connecting examples with M16C Flash
Starter (M3A-0806)".
(1) Control pins and external circuitry will vary according to programmer.
(2) In this example, modes are switched between single-chip mode and
(3) When operating with on-chip oscillator clock, connecting the oscillation circuit is not
page 185 of 205
For more information, see the programmer manual.
standard serial input/output mode by connecting a programmer.
necessary. Refer to "Appendix figure 2.1 Connecting Examples with USB Flash
Writer (M3A-0665)".
Data input
CNVss input
Reset input
Data output
Data output
MODE
Data input
I/O
User reset
signal
RxD
TxD
RESET
CNVss
MODE
RxD
TxD
Microcomputer
Microcomputer
CNVss
MODE
17.5 Standard Serial I/O Mode