DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 205

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• 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: HD64F2345TE20; HD64F2345TE20

7.2.7
The DTC enable registers comprise five 8-bit readable/writable registers, DTCERA to DTCERE,
with bits corresponding to the interrupt sources that can activate the DTC. These bits enable or
disable DTC service for the corresponding interrupt sources.
The DTC enable registers are initialized to H'00 by a reset and in hardware standby mode.
A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence
between interrupt sources and DTCE bits is shown in table 7.4, together with the vector number
generated for each interrupt controller.
For DTCE bit setting, read/write operations must be performed using bit-manipulation instructions
such as BSET and BCLR. For the initial setting only, however, when multiple activation sources
are set at one time, it is possible to disable interrupts and write after executing a dummy read on
the relevant register.
Bit n—DTC Activation Enable (DTCEn)
A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence
between interrupt sources and DTCE bits is shown in table 7.4, together with the vector number
generated for each interrupt controller.
Bit n
DTCEn
0
1
Bit
Initial value
R/W
DTC Enable Registers (DTCER)
Description
DTC activation by this interrupt is disabled
[Clearing conditions]
DTC activation by this interrupt is enabled
[Holding condition]
When the DISEL bit is 0 and the specified number of transfers have not ended
:
:
:
When the DISEL bit is 1 and the data transfer has ended
When the specified number of transfers have ended
DTCE7
R/W
7
0
DTCE6
R/W
6
0
DTCE5
R/W
5
0
DTCE4
R/W
4
0
Rev. 4.00 Feb 15, 2006 page 179 of 900
DTCE3
R/W
3
0
Section 7 Data Transfer Controller
DTCE2
R/W
2
0
DTCE1
R/W
REJ09B0291-0400
1
0
(Initial value)
DTCE0
(n = 7 to 0)
R/W
0
0