ST10F276-4TR3 STMicroelectronics, ST10F276-4TR3 Datasheet - Page 54
ST10F276-4TR3
Manufacturer Part Number
ST10F276-4TR3
Description
MCU 16BIT 832K FLASH 144-LQFP
Manufacturer
STMicroelectronics
Series
ST10r
Datasheet
1.ST10F276-4TR3.pdf
(231 pages)
Specifications of ST10F276-4TR3
Core Processor
ST10
Core Size
16-Bit
Speed
48MHz
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 ~ 105°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Bootstrap loader
5.3.2
54/231
Figure 9.
1. BSL initialization time, > 1ms @ f
2. Zero byte (1 start bit, eight ‘0’ data bits, 1 stop bit), sent by host
3. Acknowledge byte, sent by ST10F276E
4. 32 bytes of code / data, sent by host
5. Caution: TxD0 is only driven a certain time after reception of the zero byte (1.3ms @ f
6. Internal Boot ROM / Test-Flash
Entering bootstrap via UART
The ST10F276E 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 ST10F276E 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 ST10F276E.
CSP:IP
RSTIN
P0L.4
RxD0
TxD0
UART bootstrap loader sequence
(1)
CPU
(6)
(2)
= 40 MHz
Int. Boot ROM / Test-Flash BSL-routine
(5)
(3)
(4)
user software
32 bytes
CPU
= 40 MHz).
ST10F276E
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