HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 228

• Manufacturer Part Number: HD6413007F20
• Description: IC H8 MCU ROMLESS 5V 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413007F20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

7. DMA Controller
7.3
In full address mode the A and B channels operate together. Full address mode is selected as
indicated in table 7.4.
7.3.1
A memory address register (MAR) is a 32-bit readable/writable register. MARA functions as the
source address register of the transfer, and MARB as the destination address register.
An MAR consists of four 8-bit registers designated MARR, MARE, MARH, and MARL. All bits
of MARR are reserved; they cannot be modified and are always read as 1. (Write is invalid.)
Bit
Initial value
Read/Write
The MAR value is incremented or decremented each time one byte or word is transferred,
automatically updating the source or destination memory address. For details, see section 7.3.4,
Data Transfer Control Registers (DTCR).
The MARs are not initialized by a reset or in standby mode.
7.3.2
The I/O address registers (IOARs) are not used in full address mode.
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⎯
1
Memory Address Registers (MAR)
Register Descriptions (2) (Full Address Mode)
I/O Address Registers (IOAR)
30
⎯
1
29
⎯
1
MARR
28
⎯
1
27
⎯
1
26
⎯
1
25
⎯
1
24
⎯
1
R/W
23
R/W
22
R/W
21
R/W
MARE
20
Source or destination address
R/W
19
R/W
18
Undetermined
R/W
17
R/W
16
R/W
15
R/W
14
R/W
13
R/W
MARH
12
R/W
11
R/W
10
R/W
9
R/W
8
R/W
7
R/W
6
R/W
5
R/W
MARL
4
R/W
3
R/W
2
R/W
1
R/W
0