HD64F3048BF25 Renesas Electronics America, HD64F3048BF25 Datasheet - Page 236

• Manufacturer Part Number: HD64F3048BF25
• Description: IC H8 MCU FLASH 128K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048BF25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• 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: -

Section 8 DMA Controller
8.2.4
A data transfer control register (DTCR) is an 8-bit readable/writable register that controls the
operation of one DMAC channel.
The DTCRs are initialized to H'00 by a reset and in standby mode.
Bit 7—Data Transfer Enable (DTE): Enables or disables data transfer on a channel. When the
DTE bit is set to 1, the channel waits for a transfer to be requested, and executes the transfer when
activated as specified by bits DTS2 to DTS0. When DTE is 0, the channel is disabled and does not
accept transfer requests. DTE is set to 1 by reading the register when DTE is 0, then writing 1.
Bit 7: DTE
0
1
If DTIE is set to 1, a CPU interrupt is requested when DTE is cleared to 0.
Rev. 3.00 Sep 27, 2006 page 208 of 872
REJ09B0325-0300
Bit
Initial value
Read/Write
Data transfer enable
Enables or disables
data transfer
Data Transfer Control Registers (DTCR)
DTE
R/W
Description
Data transfer is disabled. In I/O mode or idle mode, DTE is cleared to 0 when
the specified number of transfers have been completed.
Data transfer is enabled
7
0
Data transfer size
Selects byte or
word size
Data transfer
increment/decrement
Selects whether to
increment or decrement
the memory address
register
DTSZ
R/W
6
0
DTID
R/W
5
0
Repeat enable
Selects repeat
mode
RPE
R/W
4
0
Data transfer interrupt enable
Enables or disables the CPU interrupt
at the end of the transfer
DTIE
R/W
3
0
DTS2
R/W
2
0
Data transfer select
These bits select the data
transfer activation source
DTS1
R/W
1
0
(Initial value)
DTS0
R/W
0
0