DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 215
DF2148BTE20
Manufacturer Part Number
DF2148BTE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
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
HD64F2148BTE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148BTE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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7.5.4
Setting the CHNE bit in MRB to 1 enables a number of data transfers to be performed
consecutively in response to a single transfer request. SAR, DAR, CRA, CRB, MRA, and MRB,
which define data transfers, can be set independently.
Figure 7.8 shows the overview of chain transfer operation. When activated, the DTC reads the
register information start address stored at the DTC vector address, and then reads the first register
information at that start address. After the data transfer, the CHNE bit will be tested. When it has
been set to 1, DTC reads the next register information located in a consecutive area and performs
the data transfer. These sequences are repeated until the CHNE bit is cleared to 0.
In the case of transfer with the CHNE bit set to 1, an interrupt request to the CPU is not generated
at the end of the specified number of transfers or by setting of the DISEL bit to 1, and the interrupt
source flag for the activation source is not affected.
DTC vector
address
Chain Transfer
Register information
start address
Figure 7.8 Chain Transfer Operation
Register information
Register information
CHNE = 1
CHNE = 0
Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Mar 21, 2006 page 159 of 788
REJ09B0300-0300
Destination
Destination
Source
Source
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