D13002X16V Renesas Electronics America, D13002X16V Datasheet - Page 227

• Manufacturer Part Number: D13002X16V
• Description: MCU 3/5V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13002X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 38
• Program Memory Type: ROMless
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• 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: -
• Program Memory Size: -

8.4.5 Normal Mode
In normal mode the A and B channels are combined. One byte or word is transferred per request.
A designated number of these transfers are executed. Addresses are specified in MARA and
MARB. Table 8-9 indicates the register functions in I/O mode.
Table 8-9 Register Functions in Normal Mode
Register
Legend
MARA:
MARB:
ETCRA: Execute transfer count register A
The source and destination addresses are both 24-bit addresses. MARA specifies the source
address. MARB specifies the destination address. MARA and MARB can be independently
incremented, decremented, or held fixed as data is transferred.
The transfer count is specified as a 16-bit value in ETCRA. The ETCRA value is decremented by
1 at each transfer. When the ETCRA value reaches H'0000, the DTE bit is cleared and the transfer
ends. If the DTIE bit is set, a CPU interrupt is requested at this time. The maximum transfer count
is 65,536, obtained by setting ETCRA to H'0000.
Figure 8-8 illustrates how normal mode operates.
23
23
Memory address register A
Memory address register B
15
MARA
MARB
ETCRA
0
0
0
Function
Source address
register
Destination
address register
Transfer counter
211
Initial Setting
Source address
Destination
address
Number of
transfers
Incremented or
decremented once per
transfer, or held fixed
Incremented or
decremented once per
transfer, or held fixed
Decremented once per
transfer
Operation