Fujitsu MB89140 Series Hardware Manual page 16

Pin No.
Pin Name
SDIP QFP
38 31 P37/DTTI
39 32 P36/PWO1
40 33 P35/EC
41 34 P34/SI
42 35 P33/SO
43 36 P32/SCK
44 37 P31/INT1
45 38 P30/INT0/TRG
1 58 BZ
19 to 26 12 to 19 P47 to P40
11 to 18 4 to 11 P57 to P50
2 to 9 59 to 2 P67 to P60
10 3 VFD
GENERAL
Table 1-2 Pin Function Description (Continued)
Circuit
type
General-purpose I/O port
Input is hysteresis type containing a noise filter. When overcurrent is
I
detected, the external rising or falling edge can be input to inactivate the
12-bit MPG output.
General-purpose I/O port
I Input is hysteresis type containing a noise filter. This port also serves as a
12-bit MPG output pin.
General-purpose I/O port
I Input is hysteresis type containing a noise filter. This port also serves as an
external clock input pin for the 8/16-bit timer/counter.
General-purpose I/O port
I Input is hysteresis type containing a noise filter. This port also serves as an
external clock input pin for the 8-bit timer/counter.
General-purpose I/O port
I Input is hysteresis type containing a noise filter. This port also serves as a
serial data output pin for the 8-bit serial interface.
General-purpose I/O port
I Input is hysteresis type containing a noise filter. This port also serves as a
serial transfer clock pin for the 8-bit serial interface.
General-purpose I/O port
Consists of an N-channel open-drain output and hysteresis input containing
E
a noise filter. This port also serves as an external interrupt pin. Interrupt
input is also hysteresis type containing a noise filter.
General-purpose I/O port
Input is hysteresis type containing a noise filter. This port can also be used
I
as an external interrupt pin or MPG trigger input pin. Interrupt input is also
hysteresis type containing a noise filter.
Used for buzzer output only
H This pin also serves as a P-channel high-withstand-voltage open-drain
output port.
P-channel high-withstand-voltage open drain output ports for small current
G Two types of microcontrollers are provided: one has a pull-down resistor
between these ports and the VFD pin, and the other does not.
P-channel high-withstanding-voltage open drain output ports for small current
G Two types of microcontrollers are provided: one has a pull-down resistor
between these ports and the VFD pin, and the other does not.
P-channel high-withstand-voltage open-drain output ports for large current
G Two types of microcontrollers are provided: one has a pull-down resistor
between these ports and the VFD pin, and the other does not.
Used for voltage supply connected to pull-down resistors for ports 4, 5 and 6
— This pin serves as an NC pin for microcontrollers without a pull-down resistor
and the MB89PV140 microcontroller.
1-11
Function