DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 511

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

No
No
Read receive data in RDR, and
clear RDRF flag in SSR to 0
PER
Read RDRF flag in SSR
Clear RE bit in SCR to 0
Read ORER, PER, and
All data received?
FER flags in SSR
Start reception
Figure 16.9 Sample Serial Reception Flowchart (1)
Initialization
FER
RDRF = 1
<End>
Yes
Yes
No
ORER = 1
(Continued on next page)
Error processing
Yes
[1]
[2]
[4]
[5]
[3]
[1] SCI initialization:
[2] [3] Receive error processing and break
[4] SCI status check and receive data read:
[5] Serial reception continuation procedure:
[Legend]
: Logical add (OR)
The RxD pin is automatically
designated as the receive data input
pin.
detection:
If a receive error occurs, read the
ORER, PER, and FER flags in SSR to
identify the error. After performing the
appropriate error processing, ensure
that the ORER, PER, and FER flags are
all cleared to 0. Reception cannot be
resumed if any of these flags are set to
1. In the case of a framing error, a
break can be detected by reading the
value of the input port corresponding to
the RxD pin.
Read SSR and check that RDRF = 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.
To continue serial reception, before the
stop bit for the current frame is
received, read the RDRF flag, read
RDR, and clear the RDRF flag to 0.
Rev.2.00 May. 28, 2009 Page 471 of 732
REJ09B0059-0200