ST92250CV2Q-Auto STMicroelectronics, ST92250CV2Q-Auto Datasheet - Page 25
ST92250CV2Q-Auto
Manufacturer Part Number
ST92250CV2Q-Auto
Description
8-bit MCU for automotive
Manufacturer
STMicroelectronics
Datasheet
1.ST92150JDV1QAUTO.pdf
(430 pages)
Specifications of ST92250CV2Q-Auto
Internal Memory
Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 TM (Emulated EEPROM)
Minimum Instruction Time
83 ns (24 MHz int. clock)
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Note 1: Port 3.0 and Port6 [7:6] present on ST92250-Auto version only.
How to Configure the I/O Ports
To configure the I/O ports, use the information in
Table
ble in the I/O Ports Chapter (See
Input Note = the hardware characteristics fixed for
each port line in
– If Input note = TTL/CMOS, either TTL or CMOS
– If Input note = Schmitt trigger, selecting CMOS
Alternate Functions (AF) = More than one AF
cannot be assigned to an I/O pin at the same time:
An alternate function can be selected as follows.
AF Inputs:
– AF is selected implicitly by enabling the corre-
AF Outputs or Bidirectional Lines:
– In the case of Outputs or I/Os, AF is selected ex-
input level can be selected by software.
or TTL input by software has no effect, the input
will always be Schmitt Trigger.
sponding peripheral. Exception to this are ADC
inputs which must be explicitly selected as AF in-
put by software.
plicitly by software.
3,
Table 4
and the Port Bit Configuration Ta-
Table
3.
page
153).
ST92124xxx-Auto/150xxxxx-Auto/250xxxx-Auto
Example 1: SCI-M input
AF: SIN, Port: P5.2. Schmitt Trigger input.
Write the port configuration bits:
P5C2.2=1
P5C1.2=0
P5C0.2 =1
Enable the SCI peripheral by software as de-
scribed in the SCI chapter.
Example 2: SCI-M output
AF: SOUT, Port: P5.3, Push-Pull/OD output.
Write the port configuration bits (for AF OUT PP):
P5C2.3=0
P5C1.3=1
P5C0.3 =1
Example 3: External Memory I/O
AF: A0/D0, Port : P0.0, Input Note: TTL/CMOS in-
put.
Write the port configuration bits:
P0C2.0=1
P0C1.0=1
P0C0.0 =1
Example 4: Analog input
AF: AIN8, Port : 7.0, Analog input.
Write the port configuration bits:
P7C2.0=1
P7C1.0=1
P7C0.0 =1
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