HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 604
HD64F2239TF20I
Manufacturer Part Number
HD64F2239TF20I
Description
MCU 3V 384K I-TEMP 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of HD64F2239TF20I
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
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Price
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Part Number:
HD64F2239TF20I
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
14.6.3
1. The RxRDY flag indicates that IERBR stores data. Reading from IERBR by the DTC clears
2. If the CPU fails to read from IERBR by the timing of the frame reception or if the number of
3. The IEB receives data while the RxRDY flag is set and sets the OVE flag when the parity bit
4. On the transmit side, the unit continues retransfer until an ACK is received because it receives
5. If the OVE flag is cleared without loading the receive data from IERBR in the RxE interrupt
6. Item 5 above will not occur when the DTC transfer words is specified as the IERBFL value.
14.6.4
(1) AL Flag
The AL Flag is set to 1 when arbitration is lost even if retransfer is performed for the number of
times specified by IEMCR after arbitration has been lost. The AL flag is not set when arbitration
is won during retransfer. If the AL flag is set to 1, the TxE flag is set and the wait state is entered.
(2) UE Flag
If the UE flag is set to 1, the TxE flag is set and the wait state is entered. For details, see section
14.6.2, TxRDY Flag and Underrun Error.
(3) TTME Flag
If a timing error occurs during data transfer, the TTME and TxE flags are set, and the wait state is
entered.
Rev. 6.00 Mar. 18, 2010 Page 542 of 982
REJ09B0054-0600
the RxRDY flag. Meanwhile, the RxRDY flag must be cleared by software since reading from
IERBR by the CPU does not clear the RxRDY flag.
transfer words is less than the length specified by the message length bits, an overrun error
occurs.
reception starts. If the OVE flag is set when the acknowledge bit is transmitted, the IEB
assumes that an overrun error has occurred, returns a NAK, and discards the data in the receive
shift register.
a NAK.
handling routine caused when the OVE flag is set to 1, the IEB decides that the overrun error
has been cleared and sends an ACK to other units. In this case, the transmit unit completes the
communications correctly. However, no receive data is loaded from the IERBR and the receive
unit continues reception. Accordingly, in an interrupt handling routine caused by the OVE flag,
receive data must be loaded from IERBR, the RxRDY flag must be cleared. The DTC, thus,
should be ready to receive the next byte, and then the OVE flag must be cleared.
Error Flag s in the IETEF
RxRDY Flag and Overrun Error
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