DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 276

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

Section 8 I/O Ports
8.3.3
Mode 1
In mode 1, port 2 pins automatically function as address outputs. The port 2 pin functions are
shown in figure 8.6.
Modes 2 and 3 (EXPE = 1)
In modes 2 and 3 (when EXPE = 1), port 2 pins function as address outputs, PWM outputs, or I/O
ports, and input or output can be specified on a bit-by-bit basis. When a bit in P2DDR is set to 1,
the corresponding pin functions as an address output or PWM output, and when cleared to 0, as an
input port. P27 to P24 are switched from address outputs to output ports by setting the IOSE bit to
1. P27 can be used as an on-chip supporting module output pin regardless of the P27DDR setting,
but to ensure normal access to external space, P27 should not be set as an on-chip supporting
module output pin when port 2 pins are used as address output pins.
The port 2 pin functions are shown in figure 8.7.
Rev. 4.00 Sep 27, 2006 page 230 of 1130
REJ09B0327-0400
Pin Functions in Each Mode
Figure 8.6 Port 2 Pin Functions (Mode 1)
Port 2
A15 (Output)
A14 (Output)
A13 (Output)
A12 (Output)
A11 (Output)
A10 (Output)
A9 (Output)
A8 (Output)