DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 500

IC H8S MCU FLASH 128K 100-QFP

DF2148BTE20

Manufacturer Part Number
DF2148BTE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheets

Specifications of DF2148BTE20

Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 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
HD64F2148BTE20
HD64F2148BTE20

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DF2148BTE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Section 16 I
16.4.2
Initialize the IIC by the procedure shown in figure 16.7 before starting transmission/reception of
data.
Note: Be sure to modify the ICMR register after transmit/receive operation has been completed.
16.4.3
In I
data, and the slave device returns an acknowledge signal.
Figure 16.8 shows the sample flowchart for the operations in master transmit mode.
Rev. 3.00 Mar 21, 2006 page 444 of 788
REJ09B0300-0300
2
C bus format master transmit mode, the master device outputs the transmit clock and transmit
If the ICMR register is modified during transmit/receive operation, bit counter BC2 to
BC0 will be modified erroneously, thus causing incorrect operation.
<< Start transmit/receive operation >>
Initialization
Master Transmit Operation
2
C Bus Interface (IIC) (Optional)
Set MSTP4 = 0 (IIC_0)
Set IICE = 1 in STCR
Set ICE = 0 in ICCR
Set ICE = 1 in ICCR
Set SAR and SARX
MSTP3 = 0 (IIC_1)
Start initialization
Set DDCSWR
(MSTPCRL)
Set STCR
Set ICMR
Set ICSR
Set ICXR
Set ICCR
Figure 16.7 Sample Flowchart for IIC Initialization
Cancel module stop mode
Enable the CPU accessing to the IIC control register and data register
Set IIC communication format
(SWE, SW, IE, and IF)
Enable SAR and SARX to be accessed
Set the first and second slave addresses and IIC communication format
(SVA6 to SVA0, FS, SVAX6 to SVAX0, and FSX)
Enable ICMR and ICDR to be accessed
Use SCL/SDA pin as an IIC port
Set acknowledge bit (ACKB)
Set transfer rate (IICX)
Set communication format, wait insertion, and transfer rate
(MLS, WAIT, CKS2 to CKS0)
Enable interrupt
(STOPIM, HNDS, ALIE, ALSL, FNC1, and FNC0)
Set interrupt enable, transfer mode, and acknowledge decision
(IEIC, MST, TRS, and ACKE)

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