DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 598

• 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]
14.4.4
This section shows an example of performing a slave transmission using the DTC after slave
reception.
(1) IEB Initialization
(a) Setting the IEBus Control Register (IECTR)
(b) Setting the IEBus Master Unit Address Registers 1 and 2 (IEAR1 and IEAR2)
Rev. 6.00 Mar. 18, 2010 Page 536 of 982
REJ09B0054-0600
Enable the IEBus pins, select the signal polarity, and select a clock supplied to the IEB. Clear
the LUEE bit to 0 because transfer by the DTC is performed.
Specify the master unit address and specify the communications mode in IEAR1. Compare
with the slave address in the communications frame and receive the frame if matched.
Interrupt
IERxI (RxRDY)
(TO DTC)
IERxI (RxRDY)
(TO CPU)
IERSI
(TO CPU)
IECMR
IERSR
IECTR
IEFLG
RxRDY
Slave Transmission
MRQ
CMX
SRQ
SRE
RxS
RxF
RE
Slave reception
H: Header, MA: Master address field, SA: Slave address field,
CF: Control field, LF: Message length field, D1, D2,..., Dn-1, Dn: Data field
(1)
Master reception request
Figure 14.11 Master Receive Operation Timing
Dn
(2)
(2)
H
MA
SA
CF
(3)
Master reception
LF
(4)
(4)
DTC transfer
of 1st byte
D1
(5)
(5)
D2
of (n-2)th byte
DTC transfer
(6)
(6)
Dn-1
of (n-1)th byte
DTC transfer
Dn
(9)
(7)
(7)
(9)
(8)
DTC transfer
(9)
of nth byte