ST10F271Z1T3 STMicroelectronics, ST10F271Z1T3 Datasheet - Page 44

• Manufacturer Part Number: ST10F271Z1T3
• Description: MCU 16BIT 128KBIT FLASH 144-TQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F271Z1T3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Bootstrap loader
6.3
6.3.1
6.3.2
6.3.3
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Alternate and selective boot mode (ABM and SBM)
Activation of the ABM and SBM
Alternate boot is activated with the combination ‘01’ on Port0L[5..4] at the rising edge of
RSTIN.
User mode signature integrity check
The behavior of the selective boot mode is based on the computing of a signature between
the content of 2 memory locations and a comparison with a reference signature. This
requires that users who use selective boot have reserved and programmed the Flash
memory locations.
Selective boot mode
When the user signature is not correct, instead of executing the standard bootstrap loader
(triggered by P0L.4 low at reset), additional check is made.
Depending on the value at the user key location, following behavior will occur:
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A jump is performed to the standard bootstrap loader
Only UART is enabled for bootstraping
Only CAN1 is enabled for bootstraping
The device enters an infinite loop.
ST10F271Z1