DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 224
DF3052BX25V
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 8 DMA Controller
8.2.3
An execute transfer count register (ETCR) is a 16-bit readable/writable register that specifies the
number of transfers to be executed. These registers function in one way in I/O mode and idle
mode, and another way in repeat mode.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Rev. 3.00 Mar 21, 2006 page 194 of 814
REJ09B0302-0300
I/O mode and idle mode
In I/O mode and idle mode, ETCR functions as a 16-bit counter. The count is decremented by
1 each time one transfer is executed. The transfer ends when the count reaches H'0000.
Repeat mode
Execute Transfer Count Registers (ETCR)
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
R/W
Transfer counter
Transfer counter
9
Undetermined
Undetermined
R/W
Undetermined
R/W
Initial count
4
4
R/W
ETCRH
ETCRL
8
R/W
7
R/W
R/W
3
3
R/W
6
R/W
5
R/W
R/W
2
2
R/W
4
R/W
3
R/W
R/W
1
1
R/W
2
R/W
1
R/W
R/W
0
0
R/W
0
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