HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 138

• 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

Port 1 Data Register (P1DR)
P1DR is an 8-bit register that stores data for pins P1
1 is read, the value in P1DR is obtained directly, regardless of the actual pin state. When a P1DDR
bit is cleared to 0, if port 1 is read the pin state is obtained.
P1DR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its existing values.
Port 1 Input Pull-Up Control Register (P1PCR)
P1PCR is an 8-bit readable/writable register that controls the input pull-up transistors in port 1. If
a P1DDR bit is cleared to 0 (designating input) and the corresponding P1PCR bit is set to 1, the
input pull-up transistor is turned on.
P1PCR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its existing values.
106
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
P1
R/W
R/W
P1
7
7
0
7
PCR P1
0
7
R/W
R/W
P1
6
6
0
6
PCR P1
0
6
R/W
R/W
P1
5
5
0
5
PCR P1
0
5
R/W
R/W
P1
4
4
0
4
PCR P1
0
7
to P1
4
0
. When a P1DDR bit is set to 1, if port
R/W
R/W
P1
3
3
0
3
PCR P1
0
3
R/W
R/W
P1
2
2
0
2
PCR P1
0
2
R/W
R/W
P1
1
1
0
1
PCR P1
0
1
R/W
R/W
P1
0
0
0
0
PCR
0
0