Datasheet

M16C/6S Group Flash Memory Version
R01DS0201EJ0502 Rev.5.02 page 183 of 203
Dec 25, 2012
Example of Circuit Application in the Standard Serial I/O Mode
Figure 1.22.1 and 1.22.2 show example of circuit application in standard serial I/O mode 1 and mode 2,
respectively. Refer to the user's manual for serial programmer to handle pins controlled by a serial
programmer.
Figure 1.22.1. Circuit Application in Standard Serial I/O Mode 1
Clock input
BUSY output
Data input
Data output
BUSY
SCLK
T
XD
CNVss
P1
5(CE)
RESET
RxD
Reset input
User reset
signal
Microcomputer
(1) Control pins and external circuitry will vary according to programmer.
For more information, see the programmer manual.
(2) In this example, modes are switched between single-chip mode and standard serial
input/output mode by controlling the CNVss input with a switch.
(3) If in standard serial input/output mode 1 there is a possibility that the user reset
signal will go low during serial input/output mode, break the connection between
the user reset signal and RESET pin by using, for example, a jumper switch.