TMP93CS41 datasheet(203/248 Pages) TOSHIBA

203 / 248 page

TMP93CS40/TMP93CS41

2004-02-10

93CS40-201

(6) AD conversion end and interrupt

• AD conversion single mode

When AD conversion of the specified channel has finished (in fixed channel

conversion mode) or when AD conversion of the last channel has finished (in channel

scan mode), ADMOD<EOCF> is set to “1”, the ADMOD<ADBF> flag is reset to “0”, and

the INTAD interrupt is generated.

• AD conversion repeat mode

For both fixed conversion channel mode and conversion channel scan mode, INTAD

should be disabled in repeat mode. Always set INTE0AD to “000”, to disable the

interrupt request.

Write 0 to ADMOD2<REPET> to terminate repeat mode. Repeat mode will be exited

as soon as the conversion in progress is completed.

(7) Storing the AD conversion result

The results of AD conversion are stored in the registers ADREG04, ADREG15,

ADREG26, ADREG37 for each channel. The result registers are used as AN0 and AN4,

AN1 and AN5, AN2 and AN6, and AN3 and AN7.

However, the contents of the registers do not indicate which channel’s data has been

converted.

In repeat mode, the registers are updated as soon as conversion ends.

ADREG04 to ADREG37 are read only registers.

(8) Reading the AD conversion result

The results of AD conversion are stored in the registers ADREG04 to ADREG37.

When the lowest two bits of one of the registers ADREG04L, ADREG15L,

ADREG26L, or ADREG37L are read, ADMOD1<EOCF> is cleared to “0”.

<EOCF> is not cleared to “0” when the upper eight bits of one of the registers

ADREG04H, ADREG15H, ADREG26H, or ADREG37H are read.

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