DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 632

• 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

Section 19 Host Interface LPC Interface (LPC)
Table 19.8 summarizes the methods of setting and clearing these bits, and figure 19.8 shows the
processing flowchart.
Table 19.8 HIRQ Setting and Clearing Conditions
Host Interrupt
HIRQ1
(independent
from IEDIR)
HIRQ12
(independent
from IEDIR)
SMI
(IEDIR = 0)
SMI
(IEDIR = 1)
HIRQi
(i = 6, 9 to 11)
(IEDIR = 0)
HIRQi
(i = 6, 9 to 11)
(IEDIR = 1)
Rev. 3.00 Mar 21, 2006 page 576 of 788
REJ09B0300-0300
Setting Condition
Internal CPU writes to ODR1, then reads
0 from bit IRQ1E1 and writes 1
Internal CPU writes to ODR1, then reads
0 from bit IRQ12E1 and writes 1
Internal CPU
• writes to ODR2, then reads 0 from bit
• writes to ODR3, then reads 0 from bit
• writes to TWR15, then reads 0 from bit
Internal CPU
• reads 0 from bit SMIE2, then writes 1
• reads 0 from bit SMIE3A, then writes 1
• reads 0 from bit SMIE3B, then writes 1
Internal CPU
• writes to ODR2, then reads 0 from bit
• writes to ODR3, then reads 0 from bit
Internal CPU
• reads 0 from bit IRQiE2, then writes 1
• reads 0 from bit IRQiE3, then writes 1
SMIE2 and writes 1
SMIE3A and writes 1
SMIE3B and writes 1
IRQiE2 and writes 1
IRQiE3 and writes 1
Clearing Condition
Internal CPU writes 0 to bit IRQ1E1,
or host reads ODR1
Internal CPU writes 0 to bit IRQ12E1,
or host reads ODR1
Internal CPU
• writes 0 to bit SMIE2, or host
• writes 0 to bit SMIE3A, or host
• writes 0 to bit SMIE3B, or host
Internal CPU
• writes 0 to bit SMIE2
• writes 0 to bit SMIE3A
• writes 0 to bit SMIE3B
Internal CPU
• writes 0 to bit IRQiE2, or host
• CPU writes 0 to bit IRQiE3, or host
Internal CPU
• writes 0 to bit IRQiE2
• writes 0 to bit IRQiE3
reads ODR2
reads ODR3
reads TWR15
reads ODR2
reads ODR3