DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 267

• Manufacturer Part Number: DF61657CN35FTV
• Description: IC H8SX/1657 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61657CN35FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 35MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 768KB (768K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K 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: 120-TQFP, 120-VQFP
• For Use With: 3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

7.3.4
DTCR is a 32-bit readable/writable register that specifies the size of data to be transferred (total
transfer size).
To transfer 1-byte data in total, set H'00000001 in DTCR. When H'00000000 is set in this register,
it means that the total transfer size is not specified and data is transferred with the transfer counter
stopped (free running mode). When H'FFFFFFFF is set, the total transfer size is 4 Gbytes
(4,294,967,295), which is the maximum size. While data is being transferred, this register
indicates the remaining transfer size. The value corresponding to its data access size is subtracted
every time data is transferred (byte: −1, word: −2, and longword: −4).
Although DTCR can always be read from by the CPU, it must be read from in longwords and
must not be written to while data for the channel is being transferred.
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
DMA Transfer Count Register (DTCR)
R/W
R/W
R/W
R/W
31
23
15
0
0
0
7
0
R/W
R/W
R/W
R/W
30
22
14
0
0
0
6
0
R/W
R/W
R/W
R/W
29
21
13
0
0
0
5
0
R/W
R/W
R/W
R/W
28
20
12
0
0
0
4
0
R/W
R/W
R/W
R/W
27
19
11
0
0
0
3
0
Rev. 2.00 Jun. 28, 2007 Page 241 of 864
Section 7 DMA Controller (DMAC)
R/W
R/W
R/W
R/W
26
18
10
0
0
0
2
0
R/W
R/W
R/W
R/W
25
17
0
0
9
0
1
0
REJ09B0341-0200
R/W
R/W
R/W
R/W
24
16
0
0
8
0
0
0