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M30240E7

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Mitsumi 

Preliminary Specifications REV. E

Specifications in this manual are tentative and subject to change

Mitsubishi microcomputers

M30240 Group

Pin Description

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

1.6 Pin Description

Table 1.3: Figure Pin Description

Pin # Name

I/O

Description

1

P87

2

P86

I/O CMOS I/O port. This pin also functions as an external trigger for A-D conversion.

I/O

CMOS I/O port. This pin also functions as the start of frame (SOF) pulse for the

USB module.

3

P85/(NMI)

4,5 P84 ~ P83

I CMOS input port. This pin also functions as a non-maskable external interrupt.

I/O

CMOS I/O port. These pins also functions as external interrupt 1 and are used

to enable the stealth detach function for the USB transceiver.

6 EXTCAP

7 BYTE

An external capacitor (Ext. Cap) pin. When the USB transceiver voltage

converter is used, a 2.2 µF and a 0.1 µF capacitor should connect between this

_ pin and Vss to ensure proper operation of the USB line driver. This option is

enabled by setting bit 4 of the USB control register (000C16) to a “1”.

I Connect this pin to Vss

8

CNVss

9

USB D+

I Connect this pin to Vss

I/O USB D+ voltage line interface, a series resistor of 33 Ω is connected to this pin.

10 USB D-

I/O USB D- voltage line interface, a series resistor of 33 Ω is connected to this pin.

11 RESET

I A “L” on this input resets the microcomputer.

12 Xout

O See Xin

13 Vss

14 Xin

I Ground: Vss = 0V

Input and output signals to and from the internal clock generation circuit.

I

Connect a ceramic resonator or quartz crystal between Xin and Xout pins to set

the oscillation frequency. If an external clock is used, connect the clock source

to the Xin pin and leave the Xout pin open.

15 Vcc

16 P82

17-18 P81 ~ P80

I Power: Vcc = 4.1~ 5.25V

I/O CMOS I/O port. This pin also functions as external interrupt 0.

I/O

CMOS I/O port. Pins in this port also function as TimerA4 input and output as

selected by software.

19-22 P77 ~ P74

23-26 P73 ~ P70

27-30 P67 ~ P64

CMOS I/O port. Pins in this port also function as timer pins.

I/O P77 and P76 can function as TimerA3 input and output as selected by software.

P75 and P74 can function as TimerA2 input and output as selected by software.

CMOS I/O port. Pins in this port also function as UART2 CTS, RTS, CLK, RXD,

and TXD as selected by software.

I/O P73 and P72 can function as TimerA1 input and output as selected by software.

P71 and P70 can function as TimerA0 input and output as selected by software.

CMOS I/O port. Pins in this port also function as UART1 CTS, RTS, CLK, Serial

I/O Clock, RXD, and TXD as selected by software. TXD(OE~) and RTS(SUSPEND)

in addition to D+ and D- can be used to run the device in USB bypass mode.

31-34 P63 ~ P60

I/O

CMOS I/O port. Pins in this port also function as UART0 CTS, RTS, CLK, RXD,

and TXD as selected by software.

35-42 P37 ~ P30

I/O CMOS I/O port.

43-50

P27/LED7

~ P20/LED0

I/O CMOS I/O port. These pins are capable of driving up to 20mA (peak) for LEDs.

1-8

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