HD6473837H Renesas Electronics America, HD6473837H Datasheet - Page 306
HD6473837H
Manufacturer Part Number
HD6473837H
Description
IC H8 MCU OTP 60K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD6473837HV.pdf
(562 pages)
Specifications of HD6473837H
Core Processor
H8/300L
Core Size
8-Bit
Speed
5MHz
Connectivity
SCI
Peripherals
LCD, PWM
Number Of I /o
84
Program Memory Size
60KB (60K x 8)
Program Memory Type
OTP
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Receiving Multiprocessor Data: Figure 10.25 shows a typical flow chart for receiving data using
a multiprocessor format. After SCI3 initialization, follow the procedure below.
1
2
3
4
Figure 10.25 Typical Flow Chart for Receiving Serial Data Using Multiprocessor Format
Read bits OER and FER in SSR
Read bits OER and FER in SSR
Read received data in RDR
Read received data in RDR
Set bit MPIE in SCR3 to 1
Clear bit RE in SCR3 to 0
Read bit RDRF in SSR
Read bit RDRF in SSR
Continue receiving?
OER + FER = 1?
OER + FER = 1?
RDRF = 1?
RDRF = 1?
Own ID?
Start
End
No
Yes
Yes
Yes
No
No
5
Error processing
Yes
Yes
Yes
No
No
No
A
Start receive error processing
End receive error processing
Clear bits OER and
FER in SSR to 0.
1.
2.
3. Read the serial status register (SSR) and confirm that
4.
5.
No
No
OER = 1?
FER = 1?
Set bit MPIE in serial control register 3 (SCR3) to 1.
Read bits OER and FER in the serial status register (SSR)
to determine if an error has occurred. If a receive error has
occurred, receive error processing is executed.
RDRF = 1. If RDRF = 1, read the data in the received data
register (RDR) and compare it with the processor’s own ID.
If the received data does not match the ID, set bit MPIE to
1 again. Bit RDRF is automatically cleared to 0 when data
in the received data register (RDR) is read.
Read SSR, check that bit RDRF = 1, then read received
data from the receive data register (RDR).
If a receive error occurs, read bits OER and FER in SSR
to determine which error occurred. After the necessary
error processing, be sure to clear the error flags to 0.
Serial data transfer cannot take place while
bit OER or FER is set to 1.
When a framing error occurs, a break can be detected by
reading the RXD pin value.
Yes
Yes
Overrun error
Framing error
processing
processing
Break?
No
Yes
A
289
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