参数资料
型号: ST10R172LT6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 50 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, TQFP-100
文件页数: 56/68页
文件大小: 657K
代理商: ST10R172LT6
6/68
ST10R172L - PIN DESCRIPTION
P3.0 –
P3.13
P3.15
8-21
22
I/O
5T
A 15-bit (P3.14 is missing) bidirectional I/O port. Port 3 is bit-
wise programmable for input or output via direction bits. For a
pin configured as input, the output driver is put into high-
impedance state. Port 3 outputs can be configured as push/
pull or open drain drivers. The following pins have alternate
functions:
9
O
5T
P3.1
T6OUT
GPT2 Timer T6 toggle latch output
10
I
5T
P3.2
CAPIN
GPT2 Register CAPREL capture
input
11
O
5T
P3.3
T3OUT
GPT1 Timer T3 toggle latch output
12
I
5T
P3.4
T3EUD
GPT1 Timer T3 ext.up/down ctrl.input
13
I
5T
P3.5
T4IN
GPT1 Timer T4 input for count/gate/
reload/capture
14
I
5T
P3.6
T3IN
GPT1 Timer T3 count/gate input
15
I
5T
P3.7
T2IN
GPT1 Timer T2 input for count/gate/
reload/capture
18
O
5T
P3.10
TxD0
ASC0 clock/data output (asyn./syn.)
19
I/O
5T
P3.11
RxD0
ASC0 data input (asyn.) or I/O (syn.)
20
O
5T
P3.12
BHE
Ext. Memory High Byte Enable Signal
O5T
WRH
Ext. Memory High Byte Write Strobe
22
O
5T
P3.15
CLKOUT
System clock output (=CPU clock)
Sy
mb
o
l
Pi
n
N
u
mb
e
r
(T
Q
F
P
)
In
p
u
t(I
)
Ou
tp
ut
(
O
)
Ki
n
d
1)
Fu
nc
ti
on
Table 1 Pin definitions
1
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