11
MB90246A Series
(Continued)
Pin no.
LQFP*
67
Pin name
Circuit
type
Function
PA3
SID2
E
This is a general-purpose I/O port.
This is a data input pin of I/O simple serial interface 2.
Because this input is used as required when is performing input
operations, and it is I/O simple serial interface 2 necessarey to stop
outputs by other functions unless such outputs are made
intentionally.
This is a general-purpose I/O port.
This function becomes valid when data output from I/O simple
serial interface 2 is disabled.
This is a data output pin of I/O simple serial interface 2.
This function becomes valid when data output from I/O simple
serial interface 2 is enabled.
This is a general-purpose I/O port.
This function becomes valid when clock output from I/O simple
serial interface 2 is disabled.
This is clock output pin of I/O simple serial interface 2.
This function becomes valid when clock output from I/O simple
serial interface 2 is enabled.
This is an I/O pin for the lower 8-bit of the external data bus.
This is power supply to the digital circuit.
68
PA4
E
SOD2
69
PA5
E
SCK2
83 to 90
21,
82
9,
40,
79
32
D00 to D07
V
CC
D
Power
supply
Power
supply
V
SS
This is a ground level of the digital circuit.
AV
CC
Power
supply
This is power supply to the analog circuit.
Make sure to turn on/turn off this power supply with a voltage
exceeding AV
CC
applied to V
CC
.
This is a reference voltage input to the A/D converter.
Make sure to turn on/turn off this power supply with a voltage
exceeding AVRH applied to AV
CC
.
This is a reference voltage input to the A/D converter.
33
AVRH
Power
supply
34
AVRL
Power
supply
Power
supply
Power
supply
Power
supply
35
AV
SS
This is a ground level of the analog circuit.
45
DVRH
This is an external reference power supply pin for the D/A
converter.
This is an external reference power supply pin for the D/A
converter.
46
DVRL
* :FPT-100P-M05