ST10F276Z5T3 STMicroelectronics, ST10F276Z5T3 Datasheet - Page 48

• 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

Bootstrap loader
5.2
5.2.1
48/239
Table 29.
Standard bootstrap loader
The built-in bootstrap loader of the ST10F276Z5 provides a mechanism to load the startup
program, which is executed after reset, via the serial interface. In this case no external
(ROM) memory or an internal ROM is required for the initialization code starting at location
00’0000
transfer data via the serial interface into an external RAM using a second level loader
routine. ROM memory (internal or external) is not necessary. However, it may be used to
provide lookup tables or may provide “core-code”, that is, a set of general purpose
subroutines, such as for I/O operations, number crunching or system initialization.
The Bootstrap Loader can load
●
●
●
The BSL mechanism may be used for standard system start-up as well as for only special
occasions like system maintenance (firmware update) or end-of-line programming or
testing.
Entering the standard bootstrap loader
As with the old ST10 bootstrap mode, the ST10F276Z5 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 Flash memory area is required for this.
After entering BSL mode and the respective initialization, the ST10F276Z5 scans the RxD0
line and the CAN1_RxD line to receive either a valid dominant bit from the CAN interface or
a start condition from the UART line.
Start condition on UART RxD
The ST10F276Z5 starts the standard bootstrap loader. This bootstrap loader is identical to
other ST10 devices (Examples: ST10F269, ST10F168). See paragraph 5.3 for details.
P0.5
1
1
0
0
The complete application software into ROMless systems,
Temporary software into complete systems for testing or calibration,
A programming routine for Flash devices.
H
. The bootstrap loader moves code/data into the IRAM but it is also possible to
ST10F276Z5 boot mode selection
P0.4
1
0
1
0
User mode: User Flash mapped at 00’0000h
Standard bootstrap loader: User Flash mapped from 00’0000h; code fetches
redirected to Test-Flash at 00’0000h
Alternate boot mode: Flash mapping depends on signatures integrity check
Reserved
ST10 decoding
ST10F276Z5