ST10F272B_12 STMICROELECTRONICS [STMicroelectronics], ST10F272B_12 Datasheet - Page 94

• Manufacturer Part Number: ST10F272B_12
• Description: 16-bit MCU with 256 Kbyte Flash memory and 12/20 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

System reset
94/188
Figure 21. Synchronous short / long hardware RESET (EA = 0)
1.
2.
3.
4.
5.
RSTIN assertion can be released there. Refer also to
If during the reset condition (RSTIN low), RPD voltage drops below the threshold voltage (about 2.5 V for 5 V operation),
the asynchronous reset is then immediately entered.
3 to 8 TCL depending on clock source selection.
RSTIN pin is pulled low if bit BDRSTEN (bit 3 of SYSCON register) was previously set by software. Bit BDRSTEN is
cleared after reset.
Minimum RSTIN low pulse duration shall also be longer than 500ns to guarantee the pulse is not masked by the internal
filter (refer to
Section
21.1).
Doc ID 11917 Rev 3
Section 21.1
for details on minimum pulse duration.
ST10F272B/ST10F272E