DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 779

• 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

24.2.2
LPWRCR is an 8-bit readable/writable register that performs power-down mode control.
Only bit 4 is described here. For a description of the other bits, see section 25.2.2, Low-Power
Control Register (LPWRCR).
LPWRCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 4—Subclock Input Enable (EXCLE): Controls subclock input from the EXCL pin.
Bit 2
SCK2
0
1
Bit 4
EXCLE
0
1
Bit
Initial value
Read/Write
Low-Power Control Register (LPWRCR)
Bit 1
SCK1
0
1
0
1
Description
Subclock input from EXCL pin is disabled
Subclock input from EXCL pin is enabled
DTON
R/W
Bit 0
SCK0
0
1
0
1
0
1
—
7
0
LSON
R/W
6
0
Bus master is in high-speed mode
Medium-speed clock is /2
Medium-speed clock is /4
Medium-speed clock is /8
Medium-speed clock is /16
Medium-speed clock is /32
—
Description
NESEL
R/W
5
0
EXCLE
R/W
4
0
Rev. 4.00 Sep 27, 2006 page 733 of 1130
—
—
3
0
Section 24 Clock Pulse Generator
—
—
2
0
REJ09B0327-0400
—
—
1
0
(Initial value)
(Initial value)
—
—
0
0