TMP92CZ26A

92CZ26A-152

3.7.15 Port M (PM1, PM2, PM7)

PM1, PM2 and PM7 are 3-b it output ports. Resetting s ets the output latch P M to “1”, and
PM1, PM2 and PM7 pins output “1”. In addition to functioning as output p orts, 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 settin g is used the function reg ister 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 bus