DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 608

• 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)
Bit
1
0
Note:
19.3.8
The SIRQCR registers contain status bits that indicate the SERIRQ operating mode and bits that
specify SERIRQ interrupt sources.
Rev. 3.00 Mar 21, 2006 page 552 of 788
REJ09B0300-0300
Bit Name Initial Value Slave Host Description
IBF3A
OBF3A
* Only 0 can be written to clear the flag.
SERIRQ Control Registers 0 and 1 (SIRQCR0, SIRQCR1)
0
0
R
R/(W) * R
R/W
R
Input Buffer Full
Set to 1 when the host processor writes to IDR. This
bit is an internal interrupt source to the slave
processor (this LSI). IBF is cleared to 0 when the
slave processor reads IDR.
The IBF1 flag setting and clearing conditions are
different when the fast A20 gate is used. For details
see table 19.3.
0: [Clearing condition]
When the slave processor reads IDR
1: [Setting condition]
When the host processor writes to IDR using I/O
write cycle
Output Buffer Full
Set to 1 when the slave processor (this LSI) writes to
ODR. OBF3A is cleared to 0 when the host
processor reads ODR.
0: [Clearing condition]
When the host processor reads ODR using I/O read
cycle, or the slave processor writes 0 to the OBF bit
1: [Setting condition]
When the slave processor writes to ODR