D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 256

• Manufacturer Part Number: D12321VF25V
• Description: IC H8S/2300 MCU ROMLESS 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12321VF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 86
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 7 DMA Controller (Not Supported in the H8S/2321)
7.2.1
MAR is a 32-bit readable/writable register that specifies the transfer source address or destination
address.
The upper 8 bits of MAR are reserved: they are always read as 0, and cannot be modified.
Whether MAR functions as the source address register or as the destination address register can be
selected by means of the DTDIR bit in DMACR.
MAR is incremented or decremented each time a byte or word transfer is executed, so that the
address specified by MAR is constantly updated. For details, see section 7.2.4, DMA Control
Register (DMACR).
MAR is not initialized by a reset or in standby mode.
Rev.6.00 Sep. 27, 2007 Page 224 of 1268
REJ09B0220-0600
Bit
MAR
Initial value :
R/W
Bit
MAR
Initial value :
R/W
Memory Address Registers (MAR)
:
:
: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
:
:
:
31
15
—
—
0
*
30
14
—
—
0
*
29
13
—
—
0
*
28
12
—
—
0
*
27
11
—
—
0
*
26
10
—
—
0
*
25
—
—
0
9
*
24
— R/W R/W R/W R/W R/W R/W R/W R/W
—
0
8
*
23
7
*
*
22
6
*
*
21
*
5
*
20
4
*
*
19
3
*
*
18
2
*
*
*: Undefined
17
1
*
*
16
0
*
*