DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 313

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

PAODR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in
software standby mode.
Port A Input Data Register (PAPIN)
Note:
Reading PAPIN always returns the pin states.
8.11.3
Port A pins also function as keyboard buffer controller I/O pins (PS2AC, PS2AD, PS2BC,
PS2BD, PS2CC, PS2CD), key-sense interrupt input pins (KIN15 to KIN8), expansion A/D
converter input pins (CIN15 to CIN8), and address output pins (A23 to A16). The port A pin
functions are shown in table 8.23.
Table 8.23 Port A Pin Functions
Pin
PA7/A23/PS2CD/
KIN15/CIN15
Bit
Initial value
Read/Write
* Determined by the state of pins PA7 to PA0.
Pin Functions
PA7PIN PA6PIN PA5PIN PA4PIN PA3PIN PA2PIN PA1PIN PA0PIN
—*
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
operating mode, the KBIOE bit in KBCR2H of the keyboard buffer controller,
the IOSE bit in SYSCR, and bit PA7DDR.
When the IICS bit in STCR is set to 1, this pin functions as a bus buffer. This
pin can always be used as the PS2CD, KIN15, or CIN15 input pin.
R
7
Operating
mode
KBIOE
PA7DDR
IOSE
Pin function
—*
R
6
Modes 1, 2 (EXPE = 0), 3
input
PA7
pin
—
0
—*
R
5
KIN15 input pin, CIN15 input pin, PS2CD input pin
0
output
PA7
pin
—
1
—*
R
4
PS2CD
output
pin
—
—
Rev. 4.00 Sep 27, 2006 page 267 of 1130
1
—*
R
3
input
PA7
pin
—
0
—*
Mode 2 (EXPE = 1)
R
2
output
A23
pin
0
0
Section 8 I/O Ports
1
—*
REJ09B0327-0400
R
1
output
PA7
pin
1
—*
PS2CD
R
0
output
pin
—
—
1