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LIM
ARY
IN
MITSUBISHI MICROCOMPUTERS
M37905F8CFP, M37905F8CSP
16-BIT CMOS MICROCOMPUTER
PIN DESCRIPTION (FLASH MEMORY SERIAL I/O MODE)
Pin
V
CC
, V
SS
MD0
MD1
_____
RESET
X
IN
X
OUT
AVcc, AVss
V
REF
P1
0
–P1
7
Name
Power supply input
MD0
MD1
Reset input
Clock input
Clock output
Analog supply input
Reference voltage input
Input port P1
Input
/Output
—
Input
Input
Input
Input
Output
—
Input
Input
Input
Input
I/O
Output
Input
Input
Input
Input
Input
Input
Input
—
Functions
Apply 5 V ± 0.5 V to Vcc, and 0 V to Vss.
Connect this pin to Vss.
Connect this pin to Vss via a resistor of 10 kΩ to 100 kΩ.
The reset input pin.
Connect a ceramic oscillator between the X
IN
and X
OUT
pins, or input an external
clock from the X
IN
pin with the X
OUT
pin left open.
Connect AVcc to Vcc, and AVss to Vss.
Input an arbitrary level within the range of V
SS
–V
CC
. (This is not used in the flash memory serial I/O mode.)
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
This is an input pin for a serial clock.
This is an I/O pin for serial data. Connect this pin to V
CC
via a resistor (about 1 kΩ).
This is an output pin for the BUSY signal.
Input “H”.
Input “H”.
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input “H” or “L”, or leave them open. (This is not used in the flash memory serial I/O mode.)
Connect this pin to the filter circuit, or leave this pin open. (This is not used in the flash
memory serial I/O mode.)
P2
0
–P2
3
, P2
7
Input port P2
SCLK input
P2
4
P2
5
P2
6
P4OUT
CUT
P6OUT
CUT
P4
0
–P4
7
P5
5
–P5
3,
P5
5
–P5
7
P6
0
–P6
7
P7
0
–P7
4
P8
0
–P8
3
V
CONT
Input port P6
Input port P7
Input port P8
Filter circuit connection
SDA I/O
BUSY output
P4OUT
CUT
input
P6OUT
CUT
input
Input port P4
Input port P5
8
RENESAS [ RENESAS TECHNOLOGY CORP ]
