M16C26 Datasheet, PDF (210/239 Pages) Renesas Technology Corp – 16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

Udenvdeelropment
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative and subject to change.
Appendix Standard Serial I/O Mode (Flash Memory Version)
M16C/26 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Appendix Standard Serial I/O Mode (Flash Memory Version)
Table 1.22.1. Pin functions (Flash memory standard serial I/O mode)
Pin
Name
I/O
Description
VCC,VSS
Power input
Apply program/erase protection voltage to Vcc pin and 0 V to Vss pin.
CNVSS
RESET
CNVSS
Reset input
I Connect to Vcc pin.
I Reset input pin. While reset is "L" level, a 20 cycle or longer clock
must be input to XIN pin.
XIN
XOUT
Clock input
Clock output
I ^{Connect a ceramic resonator or crystal oscillator between XIN and}
XOUT pins. To input an externally generated clock, input it to XIN pin
O and open XOUT pin.
AVCC, AVSS
IVCC
VREF
Analog power supply input I Connect AVss to Vss and AVcc to Vcc, respectively
Power supply
This pin must be left unconnected.
Reference voltage input
I _{Enter the reference voltage for AD from this pin.}
P10 to P17
P60 to P63
P64
Input port P1
Input port P6
BUSY output
P65
SCLK input
P66
RxD input
P67
TxD output
I Input "H" or "L" level signal or open
I Input "H" or "L" level signal or open.
O ^{Standard serial I/O mode 1: BUSY signal output pin}
Standard serial I/O mode 2: Monitors the boot program operation
check signal output pin.
I ^{Standard serial I/O mode 1: Serial clock input pin}
Standard serial I/O mode 2: Input "L".
I Serial data input pin
O Serial data output pin
P70 to P77
P80 to P83,
P86, P87
Input port P7
Input port P8
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
P86
P90 to P97
P100 to P107
CE input
Input port P9
Input port P10
I ^{Input "H" level signal.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
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