ST10F280_12 datasheet(114/239 Pages) STMICROELECTRONICS

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ST10F280 Datasheet(PDF) 114 Page - STMicroelectronics

Part #	ST10F280

Description	16-bit MCU with MAC unit, 512 Kbyte Flash memory and 18 Kbyte RAM

PDF	239 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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114 / 239 page

Parallel ports

ST10F280

114/239

Doc ID 8673 Rev. 3

Figure 36.

Block diagram of Port 3 pin with alternate input or alternate output

function

Pin P3.12 (BHE/WRH) is another pin with an alternate output function, however, its structure

is slightly different (see Figure 37). After reset the BHE or WRH function must be used

depending on the system start-up configuration. In either of these cases, there is no

possibility to program any port latches before. Thus, the appropriate alternate function is

selected automatically. If BHE/WRH is not used in the system, this pin can be used for

general purpose I/O by disabling the alternate function (BYTDIS = ‘1’ / WRCFG=’0’).

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