DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 291

• 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

8.6.3
Port 5 pins also function as SCI0 I/O pins (TxD0, RxD0, SCK0) and the IIC0 I/O pin (SCL0). The
port 5 pin functions are shown in table 8.13.
Table 8.13 Port 5 Pin Functions
Pin
P52/SCK0/SCL0
P51/RxD0
P50/TxD0
Pin Functions
Selection Method and Pin Functions
bits CKE1 and CKE0 in SCR of SCI0, bit C/A in SMR of SCI0, bit ICE in ICCR
of IIC0, and bit P52DDR.
When this pin is used as the SCL0 I/O pin, bits CKE1 and CKE0 in SCR of
SCI0 and bit C/A in SMR of SCI0 must all be cleared to 0.
SCL0 is an NMOS open-drain output, and has direct bus drive capability.
In the H8S/2148 Group and H8S/2147N, when set as the P52 output pin or
SCK0 output pin, this pin is an NMOS push-pull output.
The pin function is switched as shown below according to the combination of
bit RE in SCR of SCI0 and bit P51DDR.
The pin function is switched as shown below according to the combination of
bit TE in SCR of SCI0 and bit P50DDR.
The pin function is switched as shown below according to the combination of
ICE
CKE1
C/A
CKE0
P52DDR
Pin function
RE
P51DDR
Pin function
TE
P50DDR
Pin function
input pin
P52
P51 input pin
P50 input pin
0
0
0
0
output pin
P52
0
1
0
0
0
output pin
Rev. 4.00 Sep 27, 2006 page 245 of 1130
SCK0
P51 output pin
P50 output pin
—
0
1
1
1
output pin
SCK0
—
—
1
input pin
Section 8 I/O Ports
SCK0
TxD0 output pin
REJ09B0327-0400
RxD0 input pin
—
—
—
1
—
—
1
1
I/O pin
SCL0
—
1
0
0
0