![](http://datasheet.mmic.net.cn/30000/MB90F952MDPF_datasheet_2367779/MB90F952MDPF_10.png)
MB90950 Series
10
DS07-13752-2E
(Continued)
Pin No.
Pin name
I/O
Circuit
type*3
Function
LQFP100*1
QFP100*2
87
89
P14
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.
AD12
I/O pin of the external address/data bus (AD12). This
function is enabled when the external bus is enabled.
SCK3
Clock I/O pin for UART3
92
94
P15
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.
AD13
I/O pin of the external address/data bus (AD13). This
function is enabled when the external bus is enabled.
SIN4
Serial data input pin for UART4
93
95
P16
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.
AD14
I/O pin of the external address/data bus (AD14). This
function is enabled when the external bus is enabled.
SOT4
Serial data output pin for UART4
94
96
P17
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.
AD15
I/O pin of the external address/data bus (AD15). This
function is enabled when the external bus is enabled.
SCK4
Clock I/O pin for UART4
95 to 98
97 to 100
P20 to P23
G
General purpose I/O ports
The register can be set to select whether to use a pull-
up resistor.In external bus mode, the pin is enabled as a
general-purpose I/O port when the corresponding bit in
the external address output control register (HACR) is 1.
A16 to A19
A16 to A19 for output pins of the external address/data
bus. When the corresponding bit in the external address
output control register (HACR) is 0, the pins are enabled
as high address output pins (A16 to A19).
PPG9,
PPGB,
PPGD,
PPGF
Output pins for PPGs