DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 241

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• 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): 3 V ~ 3.6 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: -

Block transfer mode
In block transfer mode, ETCRAH functions as an 8-bit block size counter. ETCRAL holds the
initial block size. ETCRAH is decremented by 1 each time one byte or word is transferred. When
the count reaches H'00, ETCRAH is reloaded from ETCRAL. Blocks consisting of an arbitrary
number of bytes or words can be transferred repeatedly by setting the same initial block size value
in ETCRAH and ETCRAL.
In block transfer mode ETCRB functions as a 16-bit block transfer counter. ETCRB is
decremented by 1 each time one block is transferred. The transfer ends when the count reaches
H'0000.
The ETCRs are not initialized by a reset or in standby mode.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
ETCRA:
ETCRB:
R/W
15
R/W
R/W
7
7
R/W
14
R/W
13
R/W
R/W
6
6
R/W
12
R/W
11
R/W
R/W
5
5
R/W
10
Block transfer counter
R/W
Block size counter
9
Initial block size
Undetermined
R/W
Undetermined
R/W
Undetermined
4
4
ETCRAH
R/W
ETCRAL
8
Rev. 3.00 Sep 27, 2006 page 213 of 872
R/W
7
R/W
R/W
3
3
R/W
6
R/W
5
R/W
R/W
Section 8 DMA Controller
2
2
R/W
4
R/W
REJ09B0325-0300
3
R/W
R/W
1
1
R/W
2
R/W
1
R/W
R/W
0
0
R/W
0