US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 228
![no-image](/images/manufacturer_photos/0/5/560/renesas_electronics_america_sml.jpg)
US38024-BAG1
Manufacturer Part Number
US38024-BAG1
Description
DEV EVALUATION KIT H8/38024
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of US38024-BAG1
Contents
2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
For Use With/related Products
H8/38024
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 228 of 684
- Download datasheet (5Mb)
Section 8 I/O Ports
Port Pull-Up Control Register 3 (PUCR3)
PUCR3 controls whether the MOS pull-up of each of the port 3 pins P3
a PCR3 bit is cleared to 0, setting the corresponding PUCR3 bit to 1 turns on the MOS pull-up for
the corresponding pin, while clearing the bit to 0 turns off the MOS pull-up.
Upon reset, PUCR3 is initialized to H'00.
Port Mode Register 2 (PMR2)
PMR2 is an 8-bit read/write register. It controls whether the PMOS transistor internal to P3
or off, the selection of the watchdog timer clock, the selection of TMIG noise cancellation, and
switching of the P4
Upon reset, PMR2 is initialized to H'D8.
This section only deals with the bit that controls whether the PMOS transistor internal to pin P3
on or off. For the functions of the other bits, see the descriptions of port 1 (WDCKS and NCS) and
port 4 (IRQ0).
Bit 5—Pin P3
This bit selects whether the PMOS transistor of the output buffer for pin P3
Bit 5
POF1
0
1
Note: The pin is an NMOS open-drain output when this bit is set to 1 and P3
Rev. 8.00 Mar. 09, 2010 Page 206 of 658
REJ09B0042-0800
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
5
Description
CMOS output
NMOS open-drain output
PMOS Transistor Control (POF1)
PUCR3
3
R/W
—
—
/IRQ
7
1
7
0
7
0
pin functions.
PUCR3
R/W
—
—
6
1
6
0
6
PUCR3
POF1
R/W
R/W
5
0
5
0
5
PUCR3
R/W
4
0
—
—
1
4
4
PUCR3
R/W
3
0
—
—
3
1
3
PUCR3
WDCKS
R/W
R/W
2
0
7
2
0
to P3
2
5
is on or off.
5
PUCR3
0
is an output.
R/W
is on or off. When
NCS
1
0
R/W
1
0
1
(initial value)
PUCR3
R/W
0
0
IRQ0
5
R/W
is on
0
0
0
5
is
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