ST10F276-6Q3 STMicroelectronics, ST10F276-6Q3 Datasheet - Page 65

• Manufacturer Part Number: ST10F276-6Q3
• Description: MCU 16BIT 832K FLASH 144-PQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F276-6Q3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 64MHz
• 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-MQFP, 144-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

ST10F276E
5.5
5.5.1
5.5.2
Comparing the old and the new bootstrap loader
Table 33
only) bootstrap and the new one (boot via UART or CAN).
Software aspects
As the CAN1 is needed, XPERCON register is configured by the bootstrap loader code and
bit XPEN of SYSCON is set. However, as long as the EINIT instruction is not executed (and
it is not in the bootstrap loader code), the settings can be modified. To do this, perform the
following steps:
1.
2.
3.
Table 33.
Hardware aspects
Although the new bootstrap loader is designed to be compatible with the old bootstrap
loader, there are a few hardware requirements for the new bootstrap loader as summarized
in
Table 34.
Uses only 32 bytes in Dual-Port
RAM from 00’FA40h
Loads 32 bytes from UART
User selected Xperipherals can
be enabled during boot (Step 3
or Step 4).
P4.5 can be used as output in
BSL mode.
Level on CAN1_RxD can
change during boot Step 2.
Table
Former bootstrap loader
Former bootstrap loader
Disable the XPeripherals by clearing XPEN in SYSCON register. Attention: If this part
of the code is located in XRAM, it will be disabled.
Enable the needed XPeripherals by writing the correct value in XPERCON register.
Set XPEN bit in SYSCON.
34.
and
Software topics summary
Hardware topics summary
Table 34
summarize the differences between the old ST10 (boot via UART
Uses up to 128 bytes in Dual-
Port RAM from 00’FA40h
Loads 32 bytes from UART
(boot via UART mode)
Xperipherals selection is fixed.
P4.5 cannot be used as user
output in BSL mode, but only as
CAN1_RxD or input or address
segments.
Level on CAN1_RxD must be
stable at ‘1’ during boot Step 2.
New bootstrap loader
New bootstrap loader
For compatibility between boot
via UART and boot via CAN1,
please avoid loading the
application software in the
00’FA60h/00’FABFh range.
Same files can be used for boot
via UART.
User can change the
Xperipherals selections through
a specific code.
External pull-up on P4.5
needed.
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