DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 599

• 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

19.3.3
LADR3 comprises two 8-bit readable/writable registers that perform LPC channel-3 host address
setting and control the operation of the bidirectional data registers. The contents of the address
field in LADR3 must not be changed while channel 3 is operating (while LPC3E is set to 1).
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
LADR3H
LADR3L
Bit Name Initial Value R/W
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit Name Initial Value R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 1
TWRE
LPC Channel 3 Address Register (LADR3)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Channel 3 Address Bits 15 to 8:
When LPC3E = 1, an I/O address received in an LPC I/O
cycle is compared with the contents of LADR3. When
determining an IDR3, ODR3, or STR3 address match, bit 0
of LADR3 is regarded as 0, and the value of bit 2 is ignored.
When determining a TWR0 to TWR15 address match, bit 4
of LADR3 is inverted, and the values of bits 3 to 0 are
ignored. Register selection according to the bits ignored in
address match determination is as shown in table 19.2.
Description
Channel 3 Address Bits 7 to 3
Reserved
This bit is readable/writable, however, only 0 should be
written to this bit.
Channel 3 Address Bit 1
Bidirectional Data Register Enable
Enables or disables bidirectional data register operation.
0: TWR operation is disabled
TWR-related I/O address match determination is halted
1: TWR operation is enabled
Section 19 Host Interface LPC Interface (LPC)
Rev. 3.00 Mar 21, 2006 page 543 of 788
REJ09B0300-0300