ST10F276Z5T3 STMicroelectronics, ST10F276Z5T3 Datasheet - Page 55

• Manufacturer Part Number: ST10F276Z5T3
• Description: MCU 16BIT 832KBIT FLASH 144-TQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F276Z5T3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: ASC, CAN, EBI/EMI, I²C, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 832KB (832K x 8)
• Program Memory Type: FLASH
• Ram Size: 68K 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
• Cpu Family: ST10
• Device Core Size: 16b
• Frequency (max): 40MHz
• Interface Type: CAN/I2C
• Total Internal Ram Size: 68KB
• # I/os (max): 111
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 24-chx10-bit
• Instruction Set Architecture: CISC/RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: LQFP
• Processor Series: ST10F27x
• Core: ST10
• Data Bus Width: 16 bit
• Data Ram Size: 68 KB
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 111
• Number Of Timers: 5
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 497-6399 - KIT DEV STARTER ST10F276Z5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

ST10F276Z5
5.3.2
Figure 9.
1.
2.
3.
4.
5.
6.
Entering bootstrap via UART
The device enters BSL mode if pin P0L.4 is sampled low at the end of a hardware reset. In
this case, the built-in bootstrap loader is activated independently of the selected bus mode.
The bootstrap loader code is stored in a special Test-Flash; no part of the standard mask
ROM or Flash memory area is required for this.
After entering BSL mode and the respective initialization, the device scans the RxD0 line to
receive a zero byte, that is, 1 start bit, eight ‘0’ data bits and 1 stop bit. From the duration of
this zero byte, it calculates the corresponding baud rate factor with respect to the current
CPU clock, initializes the serial interface ASC0 accordingly and switches pin TxD0 to output.
Using this baud rate, an acknowledge byte is returned to the host that provides the loaded
data.
The acknowledge byte is D5h for the ST10F276Z5.
BSL initialization time, > 1ms @ fCPU = 40 MHz.
Zero byte (1 start bit, eight ‘0’ data bits, 1 stop bit), sent by host.
Acknowledge byte, sent by the ST10F276Z5.
32 bytes of code / data, sent by host.
Caution: TxD0 is only driven a certain time after reception of the zero byte (1.3ms @ fCPU = 40 MHz).
Internal Boot ROM / Test-Flash.
CSP:IP
RSTIN
P0L.4
RxD0
TxD0
UART bootstrap loader sequence
1)
6)
2)
Int. Boot ROM / Test-Flash BSL-routine
5)
3)
4)
user software
32 bytes
Bootstrap loader
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