DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 260

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: 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): 4.5 V ~ 5.5 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: -
• Other names: HD64F2148BTE20; HD64F2148BTE20

Section 8 I/O Ports
Note:
8.11
Port A is an 8-bit I/O port. Port A pins also function as keyboard buffer controller I/O pins, key-
sense interrupt input pins, expansion A/D converter input pins, and address output pins. Port A pin
functions change according to the operating mode. Port A input/output operates by VccB power
independent from the Vcc power. Up to 5 V can be applied to port A pins if VccB power is 5 V.
Port A has the following registers. PADDR and PAPIN have the same address.
Rev. 3.00 Mar 21, 2006 page 204 of 788
REJ09B0300-0300
Operating
Mode
ABW
HI12E
FGA20E
CS2E
P90DDR
Pin Function
P90/LWR/IRQ2/ADTRG/ECS2
The pin function is switched as shown below according to the combination of operating mode,
the ABW bit in WSCR, the HI12E and CS2E bits in SYSCR2, the FGA20E bit in HICR, and
the P90DDR bit.
Port A data direction register (PADDR)
Port A output data register (PAODR)
Port A input data register (PAPIN)
* When the IRQ2E bit in IER is set to 1 in mode 1, 2, or 3 (EXPE = 1) with the ABW bit in
Port A
WSCR set to 1, or in mode 2 and 3 (EXPE = 0), this pin is used as the IRQ2 input pin.
When TRGS1 and TRGS0 in ADCR of the A/D converter are both set to 1, this pin is
used as the ADTRG input pin.
LWR output
pin
—
0
Modes 1, 2, 3 (EXPE = 1)
input pin
P90
—
—
—
0
1
P90 output
IRQ2 input pin, ADTRG input pin *
pin
1
input pin
P90
0
Any one 0
Modes 2, 3 (EXPE = 0)
P90 output
pin
—
1
ECS2 input
pin
—
1
1
1