HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1276

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 35
35.17.2 Port U Data Register (PUDR)
PUDR is a register that stores data for pins PTU4 to PTU0. Bits PU4DT to PU0DT correspond to
pins PTU4 to PTU0. When the pin function is general output port, if the port is read, the value of
the corresponding PUDR bit is returned directly. When the function is general input port, if the
port is read, the corresponding pin level is read.
Table 35.17 Port U Data Register (PUDR) Read/Write Operations
Note:
Rev. 3.00 Jan. 18, 2008 Page 1214 of 1458
REJ09B0033-0300
Bit
7 to 5 
4
3
2
1
0
PUnMD1 PUnMD0 Pin State
0
1
PUCR State
Bit Name
PU4DT
PU3DT
PU2DT
PU1DT
PU0DT
n = 0 to 4
0
1
0
1
I/O Ports
Initial
Value
All 0
0
0
0
0
0
Other function PUDR value
Output
Input (Pull-up
MOS on)
Input (Pull-up
MOS off)
R/W
R
R/W
R/W
R/W
R/W
R/W
Read
PUDR value
Pin state
Pin state
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Table 35.17 shows the function of PUDR.
Write
Value is written to PUDR, but does not affect
pin state.
Write value is output from pin.
Value is written to PUDR, but does not affect
pin state.
Value is written to PUDR, but does not affect
pin state.