15 port m (pm1, pm2, pm7) – Toshiba H1 Series User Manual

Page 155

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TMP92CZ26A

92CZ26A-152

3.7.15 Port M (PM1, PM2, PM7)

PM1, PM2 and PM7 are 3-bit output ports. Resetting sets the output latch PM to “1”, and

PM1, PM2 and PM7 pins output “1”. In addition to functioning as output ports, Port M also

function as output pin for timers (TA1OUT), output pins for RTC alarm (

ALARM

), output

pin for melody/alarm generator (MLDALM,

MLDALM

) and Power control pin (PWE).

Above setting is used the function register PMFC.

PM1 has two output function which MLDALM and TA1OUT, and PM2 has two output

function which

ALARM

and

MLDALM

. This selection is used PM<PM1>, PM<PM2>.

Figure 3.7.38 Port M1

MLDALM

Reset

S

Output latch

PM write

PM Reset

Function control

PMFC write

S

A

Y

Selector

B

TA1OUT

PM1
(MLDALM,

TA1OUT)

A S

Y

Selector

B

Internal data b

us

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