DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 331

• 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

Even when ICRC or ICRD is used as a buffer register, its input capture flag is set by the selected
transition of its input capture signal. For example, if ICRC is used to buffer ICRA, when the edge
transition selected by the IEDGC bit occurs on the FTIC input capture line, ICFC will be set, and
if the ICICE bit is set at this time, an interrupt will be requested. The FRC value will not be
transferred to ICRC, however. In buffered input capture, if either set of two registers to which data
will be transferred (ICRA and ICRC, or ICRB and ICRD) is being read when the input capture
input signal arrives, input capture is delayed by one system clock ( ). Figure 11.10 shows the
timing when BUFEA = 1.
FTIA
Input capture
signal
FRC
ICRA
ICRC
FTIA
Input capture
signal
Figure 11.10 Buffered Input Capture Timing (BUFEA = 1)
CPU read cycle of ICRA or ICRC
M
m
Figure 11.9 Buffered Input Capture Timing
T 1
n
T 2
M
n
n + 1
Section 11 16-Bit Free-Running Timer (FRT)
Rev. 3.00 Mar 21, 2006 page 275 of 788
N
M
n
N
n
REJ09B0300-0300
N + 1