M306H7MG-XXXFP Datasheet, PDF (305/329 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

M306H7MG-XXXFP/MC-XXXFP/FGFP
17. FLASH MEMORY VERSION
17.9.2 Example of Circuit Application in the Standard Serial I/O Mode
Figure 17.14 and 17.15 show example of circuit application in standard serial I/O mode 1 and mode 2,
respectively. Refer to the user's manual for serial writer to handle pins controlled by a serial writer.
SCLK input
TxD input
BUSY output
RxD output
Microcomputer
P65/CLK1
P67/TxD1
P50(CE)
M1
P64/RTS1
P66/RxD1
CNVss
Reset input
User reset
signal
RESET
STARTB
VCCOFF
P85/NMI
(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 17.14 Circuit Application in Standard Serial I/O Mode 1
Rev.2.10 Oct 25, 2006 Page 305 of 326
REJ03B0152-0210