MAC7200 datasheet(823/976 Pages) FREESCALE

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Memory Map and Register Definition

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

745

33.9.2.3

VRH

High reference voltage for ATD conversions.

33.9.2.4

VRL

Low reference voltage for ATD conversions.

33.9.2.5

REFBYPC

Positive terminal for external bypass capacitor for reference voltage VREF.

33.9.2.6

ANn

These pins serve as the analog input channels. All pins are single ended inputs only. AN0 .. AN31 can also

be configured as an external trigger source for the ATD conversion. Please refer to Section Chapter 4,

“Signal Description” for availability of the pins.

33.9.2.7

SYSTRIGn

Chip-internal triggers which can start conversions

33.9.2.8

RX req / RX done

DMA request and acknowledge signal for command word receiving

33.9.2.9

TX reg / TX done

DMA request and acknowledge signal for result transmitting

33.9.2.10 SYSTRIG0/1, Interrupt, IP Bus Clock, System Clock

These signals are chip internal signals only. They are shown to give a better overview of the ATD structure.

33.10 Memory Map and Register Definition

33.10.1 Module Memory Map

This section describes the register memory map of the ATD, including the function of each register.

Table 33-4 gives an overview of all available DMADC1032 registers.

Table 33-4. Module Memory Map

Address

Use

Size

Access

Mode1

Base + 0x00

ATD Trigger Control Register (ATDTRIGCTL)

R/W

Base + 0x01

ATD External Trigger Channel Register

(ATDETRIGCH)

8R/W

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