st10f273m STMicroelectronics, st10f273m Datasheet - Page 86

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

System reset
86/182
Figure 19. Asynchronous power-on RESET (EA = 0)
1. 3 to 8 TCL depending on clock source selection
Hardware reset
The asynchronous reset must be used to recover from catastrophic situations of the
application. It may be triggered by the hardware of the application. Internal hardware logic
and application circuitry are described in Reset circuitry chapter and Figures 31,
It occurs when RSTIN is low and RPD is detected (or becomes) low as well.
V
V
XTAL1
RPD
RSTIN
RSTF
(After Filter)
P0[15:13]
P0[12:2]
P0[1:0]
ALE
RST
DD
18
≥ 1 ms (for on-chip VREG stabilization)
≥ 1.2 ms (for resonator oscillation + PLL stabilization)
≥ 10.2 ms (for crystal oscillation + PLL stabilization)
not transparent
...
transparent
transparent
system start-up configuration
≥ 50 ns
≤ 500 ns
Latching point of Port0 for
3..4 TCL
3..8 TCL
(1)
not t.
not t.
not t.
8 TCL
ST10F273M
32
and 33.