DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 544
DF2398F20V
Manufacturer Part Number
DF2398F20V
Description
IC H8S/2300 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2398F20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
128-QFP
For Use With
YR0K42378FC000BA - KIT EVAL FOR H8S/2378
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
DF2398F20V
Manufacturer:
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Quantity:
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Manufacturer:
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14.5
The following points should be noted when using the SCI.
Relation between Writes to TDR and the TDRE Flag
The TDRE flag in SSR is a status flag that indicates that transmit data has been transferred from TDR to TSR. When the
SCI transfers data from TDR to TSR, the TDRE flag is set to 1.
Data can be written to TDR regardless of the state of the TDRE flag. However, if new data is written to TDR when the
TDRE flag is cleared to 0, the data stored in TDR will be lost since it has not yet been transferred to TSR. It is therefore
essential to check that the TDRE flag is set to 1 before writing transmit data to TDR.
Operation when Multiple Receive Errors Occur Simultaneously
If a number of receive errors occur at the same time, the state of the status flags in SSR is as shown in table 14-13. If there
is an overrun error, data is not transferred from RSR to RDR, and the receive data is lost.
Table 14-13 State of SSR Status Flags and Transfer of Receive Data
Notes:
Rev.6.00 Oct.28.2004 page 514 of 1016
REJ09B0138-0600H
: Receive data is not transferred from RSR to RDR.
Usage Notes
: Receive data is transferred from RSR to RDR.
RDRF
1
0
0
1
1
0
1
ORER
1
0
0
1
1
0
1
FER
0
1
0
1
0
1
1
SSR Status Flags
PER
0
0
1
0
1
1
1
RSR to RDR
Receive Data Transfer
Receive Error Status
Overrun error
Framing error
Parity error
Overrun error + framing error
Overrun error + parity error
Framing error + parity error
Overrun error + framing error +
parity error
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