Example Of Circuit Application In The Standard Serial I/O Mode - Renesas M16C/62P Series Hardware Manual

M16C/62P Group (M16C/62P, M16C/62PT)
22.4.2

Example of Circuit Application in the Standard Serial I/O Mode

Figure 22.19 and Figure 22.20 show example of Circuit Application in Standard Serial I/O Mode 1 and Mode 2,
respectively. Refer to the user's manual of your serial programmer to handle pins controlled by the serial
programmer.
SCLK input
TXD output
BUSY output
RXD input
Reset input
NOTES:
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.
Figure 22.19 Circuit Application in Standard Serial I/O Mode 1
Rev.2.41 Jan 10, 2006
REJ09B0185-0241
http://www.xinpian.net
VCC1
VCC1
VCC1
User reset
signal
Page 301 of 390
提供单片机解密、IC解密、芯片解密业务
Microcomputer
P6_5/CLK1
P5_0(CE)
P5_5(EPM)
P6_7/TXD1
P6_4/RTS1
CNVSS
P6_6/RXD1
RESET
P8_5/NMI
22. Flash Memory Version
VCC2
VCC1
VCC1
010-62245566 13810019655