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MITSUBISHI MICROCOMPUTERS
M37906F8CFP, M37906F8CSP
16-BIT CMOS MICROCOMPUTER
PIN DESCRIPTION (FLASH MEMORY SERIAL I/O MODE)
Pin
Name
VCC, VSS Power supply input
MD0
MD0
MD1
_____
RESET
MD1
Reset input
XIN
Clock input
XOUT
Clock output
AVcc, AVss Analog supply input
VREF
Reference voltage input
P10–P17 Input port P1
P20–P23, P27 Input port P2
P24
SCLK input
P25
SDA I/O
P26
BUSY output
P6OUTCUT P6OUTCUT input
P55–P57 Input port P5
P60–P65 Input port P6
P70–P74 Input port P7
VCONT
Filter circuit connection
Input
/Output
—
Input
Input
Input
Input
Output
—
Input
Input
Input
Input
I/O
Output
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 XIN and XOUT pins, or input an external
clock from the XIN pin with the XOUT pin left open.
Connect AVcc to Vcc, and AVss to Vss.
Input an arbitrary level within the range of VSS–VCC. (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 VCC via a resistor (about 1 kΩ).
This is an output pin for the BUSY signal.
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.)
Connect this pin to the filter circuit, or leave this pin open. (This is not used in the flash
memory serial I/O mode.)
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