DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 455
DF2148BTE20
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
HD64F2148BTE20
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148BTE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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[3]
No
No
Read receive data in RDR and
clear RDRF flag in SSR to 0
Clear ORER flag in SSR to 0
Read ORER flag in SSR
Read RDRF flag in SSR
Clear RE bit in SCR to 0
Overrun error processing
All data received?
Error processing
Start reception
Initialization
Figure 15.19 Sample Serial Reception Flowchart
ORER = 1
RDRF = 1
<End>
<End>
Yes
Yes
No
(Continued below)
Error processing
Section 15 Serial Communication Interface (SCI and IrDA)
Yes
[2]
[1]
[3]
[4]
[5]
[1] SCI initialization:
[2] [3] Receive error processing:
[4] SCI status check and receive data
[5] Serial reception continuation
Rev. 3.00 Mar 21, 2006 page 399 of 788
The RxD pin is automatically
designated as the receive data input
pin.
If a receive error occurs, read the
ORER flag in SSR, and after
performing the appropriate error
processing, clear the ORER flag to 0.
Transfer cannot be resumed if the
ORER flag is set to 1.
read:
Read SSR and check that the RDRF
flag is set to 1, then read the receive
data in RDR and clear the RDRF flag
to 0.
Transition of the RDRF flag from 0 to 1
can also be identified by an RXI
interrupt.
procedure:
To continue serial reception, before
the MSB (bit 7) of the current frame is
received, reading the RDRF flag,
reading RDR, and clearing the RDRF
flag to 0 should be finished.
However, the RDRF flag is cleared
automatically when the DTC is
initiated by a receive data full interrupt
(RXI) and reads data from RDR.
REJ09B0300-0300
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