D13002F16V Renesas Electronics America, D13002F16V Datasheet - Page 70

• 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: -

2.9 Basic Operational Timing
2.9.1 Overview
The H8/300H CPU operates according to the system clock (ø). The interval from one rise of the
system clock to the next rise is referred to as a “state.” A memory cycle or bus cycle consists of
two or three states. The CPU uses different methods to access on-chip memory, the on-chip
supporting modules, and the external address space. Access to the external address space can be
controlled by the bus controller.
2.9.2 On-Chip Memory Access Timing
On-chip memory is accessed in two states. The data bus is 16 bits wide, permitting both byte and
word access. Figure 2-15 shows the on-chip memory access cycle. Figure 2-16 indicates the pin
states.
ø
Internal address bus
Internal read signal
Internal data bus
(read access)
Internal write signal
Internal data bus
(write access)
Figure 2-15 On-Chip Memory Access Cycle
T state
1
53
Bus cycle
Address
Read data
Write data
T state
2