HD64F2239FA16 Renesas Electronics America, HD64F2239FA16 Datasheet - Page 597
HD64F2239FA16
Manufacturer Part Number
HD64F2239FA16
Description
IC H8S MCU FLASH 384K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Specifications of HD64F2239FA16
Core Processor
H8S/2000
Core Size
16-Bit
Speed
16MHz
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
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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(3) Master Reception Flow
Figure 14.11 shows the master reception flow. Numbers in the following description correspond to
the number in figure 14.11. In this example, the DTC is specified when the frame reception starts.
1. After the IEB has been initialized, a master communications request command is issued from
2. The CMX flag is cleared when the slave reception is completed, the master communications
3. If the arbitration is won, the master address, slave address, and control field will be
4. The message length field is received from the slave unit. If no parity error is detected and
5. When the first data is received, the RxRDY flag is set to 1. A DTC transfer request by IERxI
6. Similarly, the above data field receive and load operations are repeated.
7. When the last data is received, the DTC completes the data transfer for the specified number of
8. When the DTC transfer has been completed, an RxRDY interrupt (IERxI) is issued to the
9.
Notes: 1. As a receive status interrupt (IERSI), an receive error completion (RxE) interrupt as
IECMR. During slave reception, the command execution status flag (CMX) in IEFLG is set
and the master communications request will not be issued.
command is executed, and the MRQ flag is set.
transmitted. An error generated before the control field transmission will be handled as a
transmission error. In this case, the TxE flag is set and the error contents will be reflected in
IETEF.
reception is performed correctly, the receive start detection flag (RxS) is set to 1. If a parity
error occurs, it is handled as a receive error. A receive start detection (RxS) interrupt (receive
status interrupt (IERSI)) occurs and the DTC initialization described in (2) is performed. After
DTC initialization, the RxS flag is cleared to 0.
occurs and the DTC loads data from the IEBus receive buffer register (IERBR) and clears the
RxRDY flag.
bytes after loading the receive data to the RAM. In this case, the DTC does not clear the
RxRDY flag. It, however, clears the DTC enable register G (DTCEG). Accordingly, hereafter,
no transfer request will be issued to the DTC.
CPU. In this interrupt handling routine, the RxRDY flag is cleared.
When the last data is received, a receive normal completion (RxF) interrupt (IERSI) occurs.
In this case, the CPU clears the RxF flag to complete the receive normal completion interrupt.
The MRQ flag is cleared to 0.
2. The interrupt occurs after the DTC transfer has been completed. Accordingly, the
well as the receive start detection (RxS) and receive normal completion (RxF)
interrupts must be enabled. If a receive error completion interrupt is disabled, no
interrupt is generated even if the reception is terminated by an error.
interrupt described in item 8 actually occurs after item 9 above.
Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
Rev. 6.00 Mar. 18, 2010 Page 535 of 982
REJ09B0054-0600
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