DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 229

• 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: -

8.3.2
The I/O address registers (IOARs) are not used in full address mode.
8.3.3
An execute transfer count register (ETCR) is a 16-bit readable/writable register that specifies the
number of transfers to be executed. The functions of these registers differ between normal mode
and block transfer mode.
Bit
Initial value
Read/Write
Normal mode
ETCRA
ETCRB: Is not used in normal mode.
In normal mode ETCRA functions as a 16-bit transfer counter. The count is decremented by 1
each time one transfer is executed. The transfer ends when the count reaches H'0000. ETCRB
is not used.
I/O Address Registers (IOAR)
Execute Transfer Count Registers (ETCR)
R/W
15
R/W
14
R/W
13
R/W
12
R/W
11
R/W
10
R/W
Transfer counter
9
Undetermined
R/W
8
R/W
Rev. 3.00 Mar 21, 2006 page 199 of 814
7
R/W
6
R/W
5
R/W
Section 8 DMA Controller
4
R/W
3
REJ09B0302-0300
R/W
2
R/W
1
R/W
0