Flash Memory
284
Mitsubishi microcomputers
M16C / 62P Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
development
Preliminary Specifications Rev.1.0
Specifications in this manual are tentative and subject to change.
Pin
Description
V
CC
,V
SS
Apply the voltage guaranteed for Program and Erase to Vcc pin and 0
V to Vss pin.
Connect to Vcc pin.
CNV
SS
RESET
X
IN
Connect a ceramic resonator or crystal oscillator between X
IN
and
X
OUT
pins. To input an externally generated clock, input it to X
IN
pin
and open X
OUT
pin.
X
OUT
BYTE
Connect this pin to Vcc or Vss.
AV
CC
, AV
SS
V
REF
Connect AVss to Vss and AVcc to Vcc, respectively.
Enter the reference voltage for AD from this pin.
P0
0
to P0
7
Input "H" or "L" level signal or open.
P1
0
to P1
7
Input "H" or "L" level signal or open.
P2
0
to P2
7
Input "H" or "L" level signal or open.
P3
0
to P3
7
Input "H" or "L" level signal or open.
P4
0
to P4
7
Input "H" or "L" level signal or open.
P5
1
to P5
4,
P5
6,
P5
7
Input "H" or "L" level signal or open.
P5
0
Input "H" level signal.
P5
5
Input "L" level signal.
P6
0
to P6
3
Input "H" or "L" level signal or open.
P6
4
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.
P6
5
P6
6
Serial data input pin
P6
7
Serial data output pin
P7
0
to P7
7
Input "H" or "L" level signal or open.
P8
0
to P8
4
, P8
6
,
P8
7
Input "H" or "L" level signal or open.
P9
0
to P9
7
Input "H" or "L" level signal or open.
P10
0
to P10
7
Input "H" or "L" level signal or open.
Name
Power input
CNV
SS
Reset input
Clock input
Clock output
BYTE
Analog power supply input
Reference voltage input
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
Input port P5
CE input
EPM input
Input port P6
BUSY output
SCLK input
RxD input
TxD output
Input port P7
Input port P8
Input port P9
Input port P10
I/O
I
I
I
O
I
I
I
I
I
I
I
I
I
I
I
O
I
I
O
I
I
I
I
P8
5
NMI input
I
Connect this pin to Vcc.
Standard serial I/O mode 1: Serial clock input pin
Standard serial I/O mode 2: Input "L".
P12
0
to P12
7
Input "H" or "L" level signal or open.
P13
0
to P13
7
Input "H" or "L" level signal or open.
Input port P12
Input port P13
I
I
P11
0
to P11
7
Input port P11
I
Input "H" or "L" level signal or open.
P14
0
to P14
7
Input "H" or "L" level signal or open.
Input port P14
I
Reset input pin. While RESET pin is "L" level, input a 20 cycle or
longer clock to X
IN
pin.
(Note 1)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
Table 1.27.7. Pin Functions (Flash Memory Standard Serial I/O Mode)
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 V
CC
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.
Note 2: Available in only the 128-pin version.