HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 98

• Manufacturer Part Number: HD6473258P10
• Description: IC H8 MCU OTP 32K 64DIP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/325r

Specifications of HD6473258P10

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI, UART/USART
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-DIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

Port 4 Data Register (P4DR)—H’FFB7
Bit
Initial value
Read/Write
P4DR is an 8-bit register containing output data for pins P4
ups. When the CPU reads P4DR, for output pins (P4DDR = 1) it reads the value in the P4DR latch,
but for input pins (P4DDR = 0), it obtains the logic level directly from the pin, bypassing the P4DR
latch. This also applies to pins used for timer or clock input or output.
MOS Pull-Ups: Are available for input pins, including timer input pins, in all modes. Software can
turn the MOS pull-up on by writing a 1 in P4DR, and turn it off by writing a 0. The pull-ups are
automatically turned off for output pins.
Pins P4
input or output, or input of 8-bit timer clock and reset signals. When a pin is used for timer signal
input, its P4DDR bit should normally be cleared to 0; otherwise the timer will receive the value in
P4DR. If input pull-up is not desired, the P4DR bit should also be cleared to 0.
Pins P4
output, or for 8-bit timer output. Pins used for timer output are unaffected by the values in P4DDR
and P4DR, and their MOS pull-ups are automatically turned off.
Pin P4
regardless of the value in P4
In mode 3 (single-chip mode) this pin is used for general-purpose input if P4
or system clock output if P4
Pin P4
1, and for general-purpose input if P4
output.
In mode 3 (single-chip mode) pin P4
6
7
: In modes 1 and 2 (expanded modes) this pin is used for system clock (Ø) output,
: In modes 1 and 2 (expanded modes) pin P4
0
1
, P4
and P4
2
, P4
4
3
: As indicated in table 5-8, these pins can be used for general-purpose input or
R/W
P4
, and P4
7
0
7
5
6
R/W
6
: As indicated in table 5-8, these pins can be used for general-purpose
P4
DDR is set to 1. It cannot be used for general-purpose output.
DDR. The MOS pull-up is automatically turned off.
6
0
6
7
7
R/W
is used for general-purpose input/output.
DDR is cleared to 0. It cannot be used for general-purpose
P4
5
0
5
R/W
89
P4
4
0
4
7
is used for E clock output if P4
R/W
P4
7
3
0
to P4
3
0
, and controlling their input pull-
R/W
P4
2
0
2
6
DDR is cleared to 0,
R/W
P4
1
0
1
7
DDR is set to
R/W
P4
0
0
0