ST10F276Z5 STMicroelectronics, ST10F276Z5 Datasheet - Page 54
ST10F276Z5
Manufacturer Part Number
ST10F276Z5
Description
16-BIT MICROCONTROLLER WITH MAC UNIT, UP TO 832 KBYTES FLASH MEMORY AND UP TO 68 KBYTES RAM
Manufacturer
STMicroelectronics
Datasheet
1.ST10F276Z5.pdf
(239 pages)
Specifications of ST10F276Z5
Single Voltage Supply
5V ±10% (embedded regulator for 1.8 V core supply)
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Bootstrap loader
5.2.7
Note:
5.2.8
5.3
5.3.1
54/239
Exiting bootstrap loader mode
To execute a program in normal mode, the BSL mode must first be
exits BSL mode at a software reset (level on P0L.4 is ignored) or a hardware reset (P0L.4
must be high in this case). After the reset, the device starts executing from location
00’0000
EA.
If a bidirectional Software Reset is executed and external memory boot is selected (EA = 0),
a degeneration of the Software Reset event into a Hardware Reset can occur (refer to
section for details). This implies that P0L.4 becomes transparent, so to exit from Bootstrap
mode it would be necessary to release pin P0L.4 (it is no longer ignored).
Hardware requirements
Although the new bootstrap loader is designed to be compatible with the old bootstrap
loader, there are a few hardware requirements relative to the new bootstrap loader:
●
●
●
Standard bootstrap with UART (RS232 or K-Line)
Features
The device bootstrap via UART has the same overall behavior as the old ST10 bootstrap via
UART:
●
●
●
External Bus configuration: Must have four or less segment address lines (keep CAN
I/Os available);
Usage of CAN pins (P4.5 and P4.6): Even in bootstrap via UART, P4.5 (CAN1_RxD)
can be used as Port input but not as output. The pin P4.6 (CAN1_TxD) can be used as
input or output.
Level on UART RxD and CAN1_RxD during the bootstrap phase (see
2): Must be 1 (external pull-ups recommended).
Same bootstrapping steps;
Same bootstrap method: Analyze the timing of a predefined byte, send back an
acknowledge byte, load a fixed number of bytes and run;
Same functionalities: Boot with different crystals and PLL ratios.
H
of the internal Flash (User Flash) or the external memory, as programmed via pin
terminated.
Figure 6
ST10F276Z5
The device
- Step
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