DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 569
DF2238RTF6
Manufacturer Part Number
DF2238RTF6
Description
MCU 2.2/3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
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
HD64F2238RTF6
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2238RTF6V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 569 of 1048
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14.3.9
IETBR is a 1-byte buffer to which data to be transmitted in master or slave transmission is written.
IETBR is empty when the TxRDY flag in IETSR is 1. Check the TxRDY flag before setting
transmit data in IETBR.
Data written in IETBR is transmitted in the data field in master or slave transmission. Figure 14.6
shows the correspondence between the communications signal format and registers for IEBus data
transfer.
Bit
7
6
5
4
3
2
1
0
[In master transmission]
Communications frame
Register
[In slave transmission]
Communications frame
Register
Bit Name
TBR7
TBR6
TBR5
TBR4
TBR3
TBR2
TBR1
TBR0
IEBus Transmit Buffer Register (IETBR)
Figure 14.6 Transmission Signal Format and Registers in Data Transfer
Notes: 1. In slave transmission, the received master address is not saved. If the unit is locked,
Initial Value
0
0
0
0
0
0
0
0
Master address
Master address
IEAR1, IEAR2
2. The received slave address is compared with IEAR1 and IEAR2, and if these addresses
3. In slave transmission, the received control bits are not saved. The received control bits
address comparison performed.
match, operation continues.
are decoded to decide the subsequent operation.
(*1)
IEAR1, IEAR2
Slave address
Slave address
IESA1, IESA2
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
(*2)
Description
Data to be transmitted is written to this 1-byte
buffer.
CTL3 to CTL0
Control bits
Control bits
in IEMCR
(*3)
Rev. 6.00 Mar. 18, 2010 Page 507 of 982
Message length
Message length
IETBFL
IETBFL
bits
bits
Data bits
Data bits
IETBR
IETBR
REJ09B0054-0600
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