TMP86FS28DFG datasheet(68/272 Pages) TOSHIBA

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Page 56

5. I/O Ports

5.2 Port P1 (P10 to P17)

TMP86FS28DFG

Figure 5-3 Port P1

Note 1: Pins set to input mode read the pin input data. Therefore, when both input and output modes are used in Port P1,

the contents of the output latch of a pin set to input mode may be overwritten by a bit manipulation instruction.

Note 2: For a pin used as an analog input, be sure to clear the corresponding bit in P1CR2 to "0" to prevent flow-through

current.

Note 3: For a pin used as an analog input, do not set P1CR1 to "1" (port output) to prevent the pin from becoming shorted

with an external signal.

Note 4: Pins not used as analog inputs can be used as input/output pins. During AD conversion, however, output instruc-

tions must not be executed to ensure the accuracy of conversion results. Also, during AD conversion, do not input

signals that fluctuate widely to pins near analog input pins.

Data output (P1DR)

Data input (P1DR)

STOP

OUTEN

AINDS

SAIN

P1CR2i input

P1CR1i input

P CR2i

P1CR1i

P1i

Note 1) i = 0, 1, 6, 7 : j = 2~5 : k = 2~5

Note 2) STOP = bit 7 in SYSCR1

Note 3) SAIN = AD input select signal

Note 4) STOPk = input select signal for

key-on wake-up

Key-on wake-up

Data output (P1DR)

Data input (P1DR)

STOP

STOPk

OUTEN

AINDS

SAIN

P1CR2j input

P1CR1j input

P1CR2j

P1CR1j

P1j

Analog input

TMP86FS28DFG Datasheet(PDF) 68 Page - Toshiba Semiconductor

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