HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 590
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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Part Number:
HD64F2239TF20I
Manufacturer:
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Quantity:
10 000
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Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
(3) Master Transmission Flow
Figure 14.8 shows the master transmission flow. Numbers in the following description correspond
to the number in figure 14.8.
1. After the IEB and DTC have been initialized, a master communications request command is
2. When the slave reception has been completed, the CMX flag is cleared, the master
3. The transmit start detection flag (TxS) in IETSR is set when arbitration is won and the master
4. The IEB loads data to be transmitted in the data field from IETBR when the control and
5. Similarly, the data field load and transmission are repeated.
6. The DTC completes the data transfer for the number of specified bytes when data to be
7. A TxRDY interrupt (IETxI) is issued to the CPU when the DTC transfer is completed. In this
8. A transmit normal completion (TxF) interrupt (IETSI) occurs after the last data transfer is
Note: As a transmit status interrupt (IETSI), the transmit error termination (TxE) interrupt as
Rev. 6.00 Mar. 18, 2010 Page 528 of 982
REJ09B0054-0600
Because the TxRDY flag is retained after a reset, the DTC transfer starts when the IETxI is
enabled and the first data for the data field is written to IETBR. The DTC negates the TxRDY
flag and the first byte of DTC transfer is completed.
issued from IECMR. During slave reception, the command execution status flag (CMX) in
IEFLG is set and the master communications request will not be issued.
communications command is executed, and the MRQ flag is set.
address has been transmitted. In this case, one of the transmit status interrupts (IETSI) is
requested to the CPU, and the TxS flag is cleared in the interrupt handling routine.
message length fields have been transmitted and an ACK is received in each field. After that,
the TxRDY flag is set. A DTC transfer request is generated by IETxI and the second byte is
written to the transmit buffer.
transmitted in the last byte is written to. At this time, the DTC does not clear the TxRDY flag.
It, however, clears bit DTCEG5 in the DTC enable register G (DTCERG) so as not to generate
more DTC transfer request.
interrupt handling routine, the TxRDY flag can be cleared. However, since a TxRDY interrupt
will be generated again after the last byte transfer, the TxRDY flag remains set. (Note that the
LUEE bit must be cleared to 0 because an underrun error occurs to terminate the transfer if the
LUEE bit in IECTR is set to 1.) Note, however, that the TxRDY interrupt must be disabled
because the TxRDY interrupt is always generated.
completed. In this case, the CPU clears the TxF flag and completes the normal completion
interrupt and clears the MRQ flag to 0.
well as the transfer start detection (TxS) and transmit normal completion (TxF) interrupts
must be enabled. If an error termination interrupt is disabled, no interrupt is generated
even if the transmission is terminated by an error.
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