DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 596

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
(c) Setting the IEBus Slave Address Setting Registers 1 and 2 (IESA1 and IESA2)
(d) Setting the IEBus Master Control Register (IEMCR)
(e) Setting the IEBus Receive Interrupt Enable Register (IEIER)
The above registers can be specified in any order. (The register specification order does not affect
the IEB operation.)
(2) DTC Initialization
1. Set the start address of the RAM which stores the register information necessary for the DTC
2. Set the following data from the start address of the RAM.
3. Set bit DTCEG6 in the DTC enabler register G (DTCERG), and enable the RxRDY interrupt
Because the above settings are performed before frame reception, the length of data to be received
cannot be determined. Accordingly, the maximum number of transfer bytes in one frame is
specified as the DTC transfer count.
If the DTC is specified after reception starts, the above settings are performed in the receive start
detection (RxS) interrupt handling routine. In this case, the transfer count must be the same value
as the contents of the IEBus receive message length register (IERBFL).
Rev. 6.00 Mar. 18, 2010 Page 534 of 982
REJ09B0054-0600
Specify the communications destination slave unit address.
Select broadcast/normal communications, specify the number of retransfer counts at arbitration
loss, and specify the control bits.
Enable the RxRDY (IERxI), RxS, RxF, and RxE (IERSI) interrupts.
transfer in the vector address (H'000004D2) to be accessed when a DTC transfer request is
generated.
⎯ Transfer source address (SAR): Address (H'FFF80D) of the IEBus receive buffer register
⎯ Transfer destination address (DAR): Start address of the RAM which stores data to be
⎯ Transfer count (CRA): Maximum number of transfer bytes in one frame in the transfer
(IERxI).
(IERBR).
received from the data field.
mode.