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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 bus