HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 164

• Manufacturer Part Number: HD64F7051SFJ20V
• Description: MCU 5V 256K J-TEMP PB-FREE QFP-1
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7050r

Specifications of HD64F7051SFJ20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, WDT
• Number Of I /o: 102
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 168-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 9 Direct Memory Access Controller (DMAC)
9.2.3
DMA transfer count registers 0–3 (DMATCR0–DMATCR3) are 24-bit read/write registers that
specify the transfer count for the channel (byte count, word count, or longword count). Specifying
a H'000001 gives a transfer count of 1, while H'000000 gives the maximum setting, 16,777,216
transfers.
The upper 8 bits of DMATCR always read 0. The write value, also, should always be 0.
The value after power-on resets and in standby mode is undefined.
Always write 0 to the upper 8 bits of a DMATCR.
Rev. 5.00 Jan 06, 2006 page 142 of 818
REJ09B0273-0500
Initial value:
Initial value:
Initial value:
Initial value:
DMA Transfer Count Registers 0–3 (DMATCR0–DMATCR3)
R/W:
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
Bit:
R/W
R/W
R/W
31
23
15
—
—
—
—
R
0
7
R/W
R/W
R/W
30
22
14
—
—
—
—
R
0
6
R/W
R/W
R/W
29
21
13
—
—
—
—
R
0
5
R/W
R/W
R/W
28
20
12
—
—
—
—
R
0
4
R/W
R/W
R/W
27
19
11
—
—
—
—
R
0
3
R/W
R/W
R/W
26
18
10
—
—
—
—
R
0
2
R/W
R/W
R/W
25
17
—
—
—
—
R
0
9
1
R/W
R/W
R/W
24
16
—
—
—
—
R
0
8
0