tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 478

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TMP19A44
upon read.
With <ITM1:0> set to "10" (applicable only to unit C), an interrupt request is generated each time
eight A/D conversions are completed. In this case, the conversion results are sequentially stored in
storage registers ADCREG0 through ADCREG7. After the conversion results are stored in
ADCREG7, <EOCF> is set to "1," and the storage of subsequent conversion results starts from
ADCREG0.
<EOCF> is cleared to "0" upon read.
Channel scan repeat conversion mode
If ADnMOD0 <REPEAT, SCAN> is set to "11," A/D conversion is performed in the channel scan
repeat conversion mode.
In this mode, A/D conversion is performed repeatedly for a scan channel selected. Each time one
A/D scan conversion is completed, ADnMOD0 <EOCF> is set to "1," and the interrupt request
INTADn is generated. ADnMOD0 <ADBF> is not cleared to "0." It remains at "1." <EOCF> is
cleared to "0" upon read.
To stop the A/D conversion operation in the repeat conversion mode (modes described in
and
above), write "0" to ADnMOD0 <REPEAT>. When ongoing A/D conversion is completed, the
repeat conversion mode terminates, and ADnMOD0 <ADBF> is set to "0."
Before switching from one mode to standby mode (such standby modes as IDLE, STOP and
BUCKUP etc.), check that A/D conversion is not being executed. If A/D conversion is under way,
you must stop it or wait until it is completed.
(2) Top-priority A/D conversion
Top-priority A/D conversion is performed only in fixed channel single conversion mode. The
ADnMOD0<REPEAT, SCAN> setting has no relevance to the top-priority A/D conversion
operations or preparations. As activation requirements are met, A/D conversion is performed only
once for a channel designated by ADnMOD2<HPADCH3:0>. After the A/D conversion is
completed,
the
top-priority
A/D
conversion
completion
interrupt
is
generated,
ADnMOD2<EOCFHP> is set to "1," and <ADBFHP> returns to "0." The EOCFHP Flag is cleared
upon read.
Analog/Digital Converter
TMP19A44(rev1.3) 17-19
2010-04-01