![](http://datasheet.mmic.net.cn/330000/MB90F549_datasheet_16437915/MB90F549_9.png)
MB90540/545 Series
9
25
P46
G
General I/O port. This function is enabled when the Serial IO dis-
ables the serial data output.
SOT2
Serial data output pin for the Serial IO. This function is enabled when
the Serial IO enables the serial data output.
26
P47
G
General I/O port. This function is enabled when the Serial IO dis-
ables the clock output.
SCK2
Clock pulse input/output pin for the Serial IO. This function is en-
abled when the Serial IO enables the clock output.
28
P50
D
General I/O port. This function is always enabled.
SIN2
Serial data input pin for the Serial IO. While the Serial IO is operating
for input, the input of the pin is used as required. Except when the
function is intentionally used, output from the other functions must
be stopped.
29 to 32
P51 to P54
D
General I/O port. This function is always enabled.
INT4 to INT7
External interrupt request input pins for INT4 to INT7. While external
interrupt is allowed, the input of the pin is used as required. Except
when the function is intentionally used, output from the other func-
tions must be stopped.
33
P55
D
General I/O port. This function is always enabled.
ADTG
Trigger input pin for the A/D converter. While the A/D converter is
operating for input, the input of the pin is used as required. Except
when the function is intentionally used, output from the other func-
tions must be stopped.
38 to 41
P60 to P63
E
General I/O port. This function is enabled when the analog input en-
able register specifies a port.
AN0 to AN3
Analog input pins for the 8/10-bit A/D converter. This function is en-
abled when the analog input enable register specifies AD.
43 to 46
P64 to P67
E
General I/O port. The function is enabled when the analog input en-
able register specifies a port.
AN4 to AN7
Analog input pins for the 8/10-bit A/D converter. This function is en-
abled when the analog input enable register specifies AD.
47
P56
D
General I/O port. This function is always enabled.
TIN0
Event input pin for the 16-bit reload timers 0. While the 16-bit reload
timer is operating for input, the input of the pin is used as required.
Except when the function is intentionally used, output from the other
functions must be stopped.
48
P57
D
General I/O port. This function is enabled when the 16-bit reload
timers 0 disables the output.
TOT0
Output pin for the 16-bit reload timers 0. This function is enabled
when the 16-bit reload timers 0 enables the output.
No.
Pin name
Circuit type
Function
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