DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 564

• 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]
14.3.3
IEMCR sets communications conditions for master communications (selection of broadcast or
normal communications, retransmission counts at arbitration loss, and control bits value). It is not
necessary to set this register for slave communications.
Rev. 6.00 Mar. 18, 2010 Page 502 of 982
REJ09B0054-0600
Bit
7
6
5
4
Bit Name
SS
RN2
RN1
RN0
IEBus Master Control Register (IEMCR)
Initial
Value
0
0
0
1
R/W
R/W
R/W
R/W
R/W
Description
Broadcast/Normal Communications Select
Selects broadcast or normal communications for master
communications.
0: Broadcast communications
1: Normal communications
Retransmission Counts
Set the number of times retransmission is performed when
arbitration is lost in master communications. If arbitration is
lost for a specified number of times, the TxE flag in IETSR
and the AL flag in IETEF are set and transmission ends
with a transmit error. If arbitration is won during
retransmission, the retransmission count is automatically
restored to the initial setting after master address transfer.
000: 0
001: 1
010: 2
011: 3
100: 4
101: 5
110: 6
111: 7