M16C29 Datasheet, PDF (379/499 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/Tiny SERIES

M16C/29 Group
20. Flash Memory Version
Table 20.8 Pin Descriptions (Flash Memory Standard Serial I/O Mode)
Pin
VCC,VSS
Name
Power input
I/O
Descriptio
Apply the voltage guaranteed fornProgram and Erase to Vcc pin and 0
V to Vss pin.
CNVSS
RESET
CNVS
S
Reset input
I Connect to Vcc pin.
I Reset input pin. While RESET pin is “L”, wait for td(ROC).
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
Analog power supply input
Connect AVss to Vss and AVcc to Vcc, respectively.
VREF
Reference voltage input
I Enter the reference voltage for AD conversion.
P00 to P07
Input port P0
I Input “H” or “L” signal or leave open.
P10 to P15, P17 Input port P1
P16
Input port P1
I Input “H” or “L” signal or leave open.
I _{Connect this pin to Vcc while RESET pin is “L”.} (2)
P20 to P27
Input port P2
I Input "H" or “L” level signal or leave open.
P30 to P37
Input port P3
I Input "H" or “L” level signal or leave open.
P60 to P63
P64
P65
P66
P67
Input port P6
BUSY output
SCLK input
RxD input
TxD output
I Input "H" or “L” level signal or leave open.
O ^{Standard serial I/O mode 1: BUSY signal output pin}
Standard serial I/O mode 2: Monitor signal output pin for boot program
operation check
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 ⁽¹⁾
P70 to P77
Input port P7
I Input “H” or “L” signal or leave open.
P80 to P84,
P87
P85
Input port P8
RP input
I Input “H” or “L” signal or leave open.
I Connect this pin to Vss while RESET pin is “L”. ⁽²⁾
P86
P90 to P92,
P95 to P97
P93
CE input
I _{Connect this pin to Vcc while RESET pin is “L”.} ⁽²⁾
Input port P9
I Input “H” or “L” signal or leave open.
Input port P93 Normal-ver. I/O “H” signal is output for specific time. Input “H” signal or leave open.
T-ver./V-ver. _{I Input “H” or “L” signal or leave open.}
P100 to P107
Input port P10
I Input “H” or “L” signal or leave open.
NOTES:
___________
1. When using standard serial I/O mode 1, to input “H” to the TxD pin is necessary while the RESET pin is held “L”.
Therefore, connect this pin to VCC via a resistor. Adjust the pull-up resistor value on a system not to affect a data
transfer after reset, because this pin changes to a data-output pin
2. Set the follow_{_}i_{_}n_{__}g_{_} , either or both.
-Connect the CE pin to VCC.
_____
-Connect the RP pin to VSS and P16 pin to VCC.
Rev. 1.12 Mar.30, 2007 ^{page 355} of 458
REJ09B0101-0112