DF2148BFA20 Renesas Electronics America, DF2148BFA20 Datasheet - Page 207
DF2148BFA20
Manufacturer Part Number
DF2148BFA20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148BFA20
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-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148BFA20
HD64F2148BFA20
HD64F2148BFA20
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7.2.8
DTVECR enables or disables DTC activation by software, and sets a vector number for the
software activation interrupt.
DTVECR is initialized to H'00 at a reset and in hardware standby mode.
Bit
7
6
5
4
3
2
1
0
Bit Name
SWDTE
DTVEC6
DTVEC5
DTVEC4
DTVEC3
DTVEC2
DTVEC1
DTVEC0
DTC Vector Register (DTVECR)
Initial Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Setting this bit to 1 activates DTC. Only 1 can always be
written to this bit. 0 can be written to after reading 1
from this bit.
[Clearing conditions]
[Holding conditions]
DTC Software Activation Vectors 6 to 0
These bits specify a vector number for DTC software
activation.
The vector address is expressed as H'0400 + (vector
number
H'10, the vector address is H'0420. When the SWDTE
bit is 0, these bits can be written to.
Description
DTC Software Activation Enable
When the DISEL bit is 0 and the specified number of
transfers have not ended.
When 0 is written to the DISEL bit after a software-
activated data transfer end interrupt (SWDTEND)
request has been sent to the CPU.
When the DISEL bit is 1 and data transfer has
ended
When the specified number of transfers have ended.
During data transfer activated by software
2). For example, when DTVEC6 to DTVEC0 =
Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Mar 21, 2006 page 151 of 788
REJ09B0300-0300
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