Datasheet

M16C/6S Group Flash Memory Version
R01DS0201EJ0502 Rev.5.02 page 182 of 203
Dec 25, 2012
Pin Description
V
CC,VSS
Apply the voltage guaranteed for Program and Erase to Vcc pin.
Apply 0 V to Vss pin.
CNV
SS Connect to Vcc pin.
RESET
X
IN
Connect a ceramic resonator or crystal oscillator between XIN and
X
OUT pins. To input an externally generated clock, input it to XIN pin
and open X
OUT pin.
X
OUT
VDCCN Input "H" level signal.
V
CCA, VSSA
V
REF
Please connect AVcc to Vcc and connect AVss to Vss.
Input the standard voltage of a preamplifier and an
operational amplifier.
Input "H" or "L" level signal or open.
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.
Standard serial I/O mode 1: Serial clock input pin
Standard serial I/O mode 2: Input "L."
Serial data input pin.
Serial data output pin. (Note 1)
Input "H" or "L" level signal or open.
P6
0 to P63
P90 to P92
Input "H" or "L" level signal or open.
P6
4/RTS1
P6
5/CLK1
P6
6/RXD1
Input "H" or "L" level signal or open.
P67/TXD1
P1
5
P70, P71, P73,
P7
4, P76
P80, P81, P83,
P8
4, P85
Signal name
Power supply input
CNV
SS
Reset input
Clock input
Clock output
Analog power supply input
Standard voltage input
Input port P6
BUSY output
SCLK input
RxD input
TxD output
CE input
Input port P7
Input port P8
Input port P11
I/O
I
I
I
I
O
O
O
I
I
I
I
I
I
I
I
Input "H" level signal.
Reset input pin. While RESET pin is "L" level, input a 20 cycle or
longer clock to X
IN pin.
Note 1: When using standard serial input/output mode 1, the TxD pin must be held high while the RESET pin is pulled low.
Therefore, connect this pin to Vcc1 via a resistor. Because this pin is directed for data output after reset, adjust the pull-up
resistance value in the system so that data transfers will not be affected.
Table 1.22.3. Functional explanation of pin (flash memory standard serial I/O mode)