ST10F280 datasheet(106/186 Pages) STMICROELECTRONICS

Teilenummer	ST10F280

Bauteilbeschribung	16-BIT MCU WITH MAC UNIT, 512K BYTE FLASH MEMORY AND 18K BYTE RAM

PDF	186 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

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ST10F280

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13.2 - Multiplexage of two blocks of 16 Analog Inputs

The ADC can manage 16 analog inputs, so to increase its capability, a new XADCMUX register is added

to control the multiplexage between the first block of 16 channels on Port5 and the second block of 16

channels on XPort10. The conversion result register stays identical and only a software management can

determine the block in use.

The XADCMUX register is enabled by setting XPEN bit 2 of the SYSCON register and bit 3 of the new

XPERCON register

XADCMUX (C384h)

Reset Value: 0000h

Figure 52 : Block Diagram

98765432

-------------

XADCMUX

Bit

Function

XADCMUX.0

Default configuration,analog inputs on port P5.y can be converted

Analog inputs on port XP10.y can be converted

y = 15...0

Input

latch

Input

latch

ADC

Read Port P5.y

Read Port XP10.y

Channel Select

XADCMUX

CPU clock

P5.y

XP10.y

XBUS

Internal Bus

ST10F280 Datenblatt(PDF) 106 Page - STMicroelectronics