ST92195B データシートの表示（PDF） - STMicroelectronics
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ST92195B Datasheet PDF : 22 Pages
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ST92195B - GENERAL DESCRIPTION
Port
Name
P4.5
P4.6
P4.7
P5.0
P5.1
General
Pin No.
Purpose I/O TQFP64 SDIP56
45
47 PWM5
46
48 PWM6
All ports useable
for general pur- 47
pose I/O (input,
output or bidi-
rectional)
14
EXTRG
49 PWM7
STO UT
INT2
20
SCK
SDO
13
19
SDI
Alternate Functions
O PWM Output 5
O PWM Output 6
I A/D Converter External Trigger Input
O PWM Output 7
O Standard Timer Output
I External Interrupt 2
O SPI Serial Clock
O SPI Serial Data Out
I SPI Serial Data In
1.2.2 I/O Port Styles
Pin s
P0[7:0]
P2[5,4,3,2]
P2[1,0]
P3.7
P3[6,5,4]
P4[7:0]
P5[1:0]
Weak Pull-Up
no
no
no
yes
no
no
no
Port Style
Standard I/O
Standard I/O
Schmitt trigger
Standard I/O
Standard I/O
Standard I/O
Standard I/O
Reset Values
BID / OD / TTL
BID / OD / TTL
BID / OD / TTL
AF / PP / TTL
BID / OD / TTL
BID / OD / TTL
BID / OD / TTL
Legend:
AF= Alternate Function, BID = Bidirectional, OD = Open Drain
PP = Push-Pull, TTL = TTL Standard Input Levels
How to Read this Table
To configure the I/O ports, use the information in
this table and the Port Bit Configuration Table in
the I/O Ports Chapter of the datasheet.
– If WPU = yes, then the WPU can be enabled/dis-
able by software
– If WPU = no, then enabling the WPU by software
has no effect
Port Style= the hardware characteristics fixed for
each port line.
Inputs:
– If port style = Standard I/O, either TTL or CMOS
input level can be selected by software.
– If port style = Schmitt trigger, selecting CMOS or
TTL input by software has no effect, the input will
always be Schmitt Trigger.
Weak Pull-Up = This column indicates if a weak
pull-up is present or not.
Alternate Functions (AF) = More than one AF
cannot be assigned to an external pin at the same
time:
An alternate function can be selected as follows.
AF Inputs:
– AF is selected implicitly by enabling the corre-
sponding peripheral. Exception to this are ADC
analog inputs which must be explicitly selected
as AF by software.
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