DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 282

• 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
8.4.3
Modes 1, 2, and 3 (EXPE = 1)
In modes 1, 2, and 3 (when EXPE = 1), port 3 pins automatically function as data I/O pins. The
port 3 pin functions are shown in figure 8.10.
Modes 2 and 3 (EXPE = 0)
In modes 2 and 3 (when EXPE = 0), port 3 functions as host interface data bus I/O pins (HDB7 to
HDB0) or as I/O ports. When the HI12E bit is set to 1 in SYSCR2 and a transition is made to
slave mode, port 3 functions as the host interface data bus. In slave mode, P3DR and P3DDR
should be cleared to H'00. When the HI12E bit is cleared to 0, port 3 functions as an I/O port, and
input or output can be specified on a bit-by-bit basis. When a bit in P3DDR is set to 1, the
corresponding pin functions as an output port, and when cleared to 0, as an input port.
The port 3 pin functions are shown in figure 8.11.
Rev. 4.00 Sep 27, 2006 page 236 of 1130
REJ09B0327-0400
Pin Functions in Each Mode
Figure 8.10 Port 3 Pin Functions (Modes 1, 2, and 3 (EXPE = 1))
Port 3
D15 (I/O)
D14 (I/O)
D13 (I/O)
D12 (I/O)
D11(I/O)
D10 (I/O)
D9 (I/O)
D8 (I/O)