![](http://datasheet.mmic.net.cn/30000/MB90F952MDPF_datasheet_2367779/MB90F952MDPF_9.png)
MB90950 Series
DS07-13752-2E
9
■ PIN DESCRIPTION
(Continued)
Pin No.
Pin name
I/O
Circuit
type*3
Function
LQFP100*1
QFP100*2
90
92
X1
A
Oscillation output pin
91
93
X0
Oscillation input pin
52
54
RST
E
Reset input
75 to 82
77 to 84
P00 to P07
G
General purpose I/O port
The register can be set to select whether to use a pull-
up resistor. This function is enabled in single-chip mode.
AD00
to
AD07
I/O pins for 8 lower bits of the external address/data bus.
This function is enabled when the external bus is
enabled.
INT8
to
INT15
External interrupt request input pins for INT8 to INT15.
83
85
P10
G
General purpose I/O port
The register can be set to select whether to use a pull-
up resistor. This function is enabled in single-chip mode.
AD08
I/O pin of the external address/data bus (AD08). This
function is enabled when the external bus is enabled.
TIN1
Event input pin for the reload timer1
84
86
P11
G
General purpose I/O port
The register can be set to select whether to use a pull-
up resistor. This function is enabled in single-chip mode.
AD09
I/O pin of the external address/data bus (AD09). This
function is enabled when the external bus is enabled.
TOT1
Output pin for the reload timer1
85
87
P12
N
General purpose I/O port
The register can be set to select whether to use a pull-
up resistor. This function is enabled in single-chip mode.
AD10
I/O pin of the external address/data bus (AD10). This
function is enabled when the external bus is enabled.
SIN3
Serial data input pin for UART3
INT11R
External interrupt request input pin (Sub) for INT11
86
88
P13
G
General purpose I/O port
The register can be set to select whether to use a pull-
up resistor. This function is enabled in single-chip mode.
AD11
I/O pin of the external address/data bus (AD11). This
function is enabled when the external bus is enabled.
SOT3
Serial data output pin for UART3