ST10F276Z5 datasheet(112/239 Pages) STMICROELECTRONICS

tên linh kiện	ST10F276Z5

Giải thích chi tiết về linh kiện	16-bit MCU with MAC unit, 832 Kbyte Flash memory and 68 Kbyte RAM

PDF	239 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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System reset

ST10F276Z5

112/239

Figure 27.

Asynchronous hardware RESET (EA = 0)

This timing can be longer than Port0 settling time + PLL synchronization (if needed, that is

P0(15:13) changed).

It can longer than 500ns to take into account of Input Filter on RSTIN pin.

2. 2. 3 to 8 TCL depending on clock source selection

Exit from asynchronous reset state

When the RSTIN pin is pulled high, the device restarts: as already mentioned, if internal

FLASH is used, the restarting occurs after the embedded FLASH initialization routine is

completed. The system configuration is latched from Port0: ALE, RD and WR/WRL pins are

driven to their inactive level. The device starts program execution from memory location

00'0000h in code segment 0. This starting location will typically point to the general

initialization routine. Timing of asynchronous Hardware Reset sequence are summarized in

Figure 26 and Figure 27.

RSTF

P0[15:13]

P0[12:2]

transparent

not t.

transparent

not t.

P0[1:0]

not t.

not transparent

3..8 TCL2)

RST

Latching point of Port0 for

system start-up configuration

RPD

ALE

not transparent

(After Filter)

RSTIN

≤ 500 ns

≥ 50 ns

≤ 500 ns

≥ 50 ns

8 TCL

3..4 TCL

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