HD4046212RFS datasheet(96/157 Pages) RENESAS

Part #	HD4046212RFS

Description	AS Microcomputer Incorporating a DTMF Generator Circuit

PDF	157 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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HD404629R Series

Miscellaneous Register (MIS: $00C): This register has the following function (figure 80).

 R2

3/SO pin PMOS control

Miscellaneous register (MIS: $00C) is a 4-bit write-only register and is reset to $0 by MCU reset.

Bit

Initial value

Read/Write

Bit name

MIS3

MIS2

MIS0

MIS1

Miscellaneous register (MIS: $00C)

MIS1

MIS0

tRC

0.12207 ms

0.24414 ms

7.8125 ms

31.25 ms

Not used

MIS2

R23/SO PMOS on/off selection

Off

MIS3

Pull-up MOS on/off selection

Off

Figure 80 Miscellaneous Register (MIS)

A/D Converter

The MCU has a built-in A/D converter that uses a successive approximation method with a resistor ladder.

It can measure four analog inputs with 8-bit resolution. As shown in the block diagram of figure 81, the

A/D converter has a 4-bit A/D mode register, a 1-bit A/D start flag, and a 4-bit plus 4-bit A/D data register.

HD4046212RFS Datasheet(PDF) 96 Page - Renesas Technology Corp