DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 231

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: Lead free / RoHS Compliant
• Eeprom Size: -

8.3.4
The data transfer control registers (DTCRs) are 8-bit readable/writable registers that control the
operation of the DMAC channels. A channel operates in full address mode when bits DTS2A and
DTS1A are both set to 1 in DTCRA. DTCRA and DTCRB have different functions in full address
mode.
DTCRA
DTCRA is initialized to H'00 by a reset and in standby mode.
Bit
Initial value
Read/Write
Data transfer enable
Enables or disables
data transfer
Data Transfer Control Registers (DTCR)
DTE
R/W
7
0
Data transfer size
Selects byte or
word size
DTSZ
R/W
6
0
Source address
increment/decrement
Source address increment/
decrement enable
These bits select whether
the source address register
(MARA) is incremented,
decremented, or held fixed
during the data transfer
SAID
R/W
5
0
SAIDE
R/W
Data transfer
interrupt enable
Enables or disables the
CPU interrupt at the end
of the transfer
4
0
DTIE
Rev. 3.00 Mar 21, 2006 page 201 of 814
R/W
3
0
DTS2A
R/W
Data transfer select
2A and 1A
These bits must both be
set to 1
2
0
Section 8 DMA Controller
DTS1A
R/W
1
0
REJ09B0302-0300
Data transfer
select 0A
Selects block
transfer mode
DTS0A
R/W
0
0