D13002F16V Renesas Electronics America, D13002F16V Datasheet - Page 238

• Manufacturer Part Number: D13002F16V
• Description: IC H8/3002 ROMLESS 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13002F16V

• 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-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Figure 8-14 shows the timing when the DMAC is activated by low input at a DREQ pin. This
example shows a word-size transfer from a 16-bit two-state access area to another 16-bit two-state
access area. The DMAC continues the transfer while the DREQ pin is held low.
ø
DREQ
Address
bus
RD
HWR
TEND
,
LWR
Figure 8-14 Bus Timing of DMA Transfer Requested by Low
T
1
CPU cycle
T
2
T
3
T
d
T
1
DMAC cycle
Source
address
T
2
T
Destination
address
1
222
T
2
T
CPU cycle
1
T
2
T
d
DMAC cycle
(last transfer cycle)
T
1
Source
address
T
2
DREQ Input
T
Destination
address
1
T
2
T
CPU cycle
1
T
2