DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 384

• 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 13 Timer Connection
Bit
3
2
1
0
Notes: 1. Only 0 can be written, to clear the flag.
Rev. 3.00 Mar 21, 2006 page 328 of 788
REJ09B0300-0300
Bit Name
VFEDG
PREQF
IHI
IVI
2. The initial value is undefined since it depends on the pin state.
Initial Value
0
0
Undefined *
Undefined *
2
2
R/W
R/(W) *
R/(W) *
R
R
1
1
Description
VFBACKI Edge
Detects a rising edge on the VFBACKI pin.
[Clearing condition]
When 0 is written in VFEDG after reading VFEDG = 1
[Setting condition]
When a rising edge is detected on the VFBACKI pin
Pre-Equalization Flag
Detects the occurrence of an IHI signal 2fH
modification condition. The generation of a
falling/rising edge in the IHI signal during a mask
interval is expressed as the occurrence of a 2fH
modification condition. For details, see section 13.4.4,
2fH Modification of IHI Signal.
[Clearing condition]
When 0 is written in PREQF after reading PREQF = 1
[Setting condition]
When an IHI signal 2fH modification condition is
detected
IHI Signal Level
Indicates the current level of the IHI signal. Signal
source and phase inversion selection for the IHI
signal depends on the contents of TCONRI. Read this
bit to determine whether the input signal is positive or
negative, then maintain the IHI signal at positive
phase by modifying TCONRI.
0: The IHI signal is low
1: The IHI signal is high
IVI Signal Level
Indicates the current level of the IVI signal. Signal
source and phase inversion selection for the IVI signal
depends on the contents of TCONRI. Read this bit to
determine whether the input signal is positive or
negative, then maintain the IVI signal at positive
phase by modifying TCONRI.
0: The IVI signal is low
1: The IVI signal is high