D12312SVTEBL25 Renesas Electronics America, D12312SVTEBL25 Datasheet - Page 289

• Manufacturer Part Number: D12312SVTEBL25
• Description: IC H8S MCU ROMLESS 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTEBL25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412312SVTEBL25; HD6412312SVTEBL25

• Mode 7 *
Note: * Modes 6 and 7 are not available in the ROMless versions.
Port A Data Register (PADR)
Bit
Initial value : Undefined Undefined Undefined Undefined
R/W
PADR is an 8-bit readable/writable register that stores output data for the port A pins (PA3 to
PA0).
Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified.
PADR is initialized to H'0 (bits 3 to 0) by a reset, and in hardware standby mode. It retains its
prior state in software standby mode.
Port A Register (PORTA)
Bit
Initial value : Undefined Undefined Undefined Undefined
R/W
Note: * Determined by state of pins PA3 to PA0.
PORTA is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port A pins (PA3 to PA0) must always be performed on PADR.
Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified.
If a port A read is performed while PADDR bits are set to 1, the PADR values are read. If a port A
read is performed while PADDR bits are cleared to 0, the pin states are read.
After a reset and in hardware standby mode, PORTA contents are determined by the pin states, as
PADDR and PADR are initialized. PORTA retains its prior state in software standby mode.
Setting PADDR bits to 1 makes the corresponding port A pins output ports, while clearing the
bits to 0 makes the pins input ports.
:
:
:
:
—
—
—
—
7
7
—
—
—
—
6
6
—
—
—
—
5
5
—
—
—
—
4
4
Rev.7.00 Feb. 14, 2007 page 255 of 1108
PA3DR
R/W
PA3
— *
R
3
0
3
PA2DR
R/W
PA2
— *
R
2
0
2
Section 8 I/O Ports
PA1DR
REJ09B0089-0700
R/W
PA1
— *
R
1
0
1
PA0DR
R/W
PA0
— *
R
0
0
0