HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 141

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2.4
Port 1 has built-in programmable input pull-up transistors that are available in modes 2 and 3. The
pull-up for each bit can be turned on and off individually. To turn on an input pull-up in mode 2 or
3, set the corresponding P1PCR bit to 1 and clear the corresponding P1DDR bit to 0. P1PCR is
cleared to H'00 by a reset and in hardware standby mode, turning all input pull-ups off. In software
standby mode, the previous state is maintained.
Table 7.3 indicates the states of the input pull-up transistors in each operating mode.
Table 7.3
Mode
1
2
3
Notes: Off:
On/off: The input pull-up transistor is on if P1PCR = 1 and P1DDR = 0, but off otherwise.
Input Pull-Up Transistors
Reset
Off
Off
Off
States of Input Pull-Up Transistors (Port 1)
The input pull-up transistor is always off.
Hardware Standby
Off
Off
Off
Software Standby
Off
On/off
On/off
Other Operating Modes
Off
On/off
On/off
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