HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 58

• Manufacturer Part Number: HD6473834HV
• Description: MCU 5V 32K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473834HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 71
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

2.6
CPU operation is synchronized by a system clock ( ) or a subclock (
clock signals see section 4, Clock Pulse Generators. The period from a rising edge of or
the next rising edge is called one state. A bus cycle consists of two states or three states. The cycle
differs depending on whether access is to on-chip memory or to on-chip peripheral modules.
2.6.1
Access to on-chip memory takes place in two states. The data bus width is 16 bits, allowing access
in byte or word size. Figure 2.11 shows the on-chip memory access cycle.
Internal address bus
Internal read signal
Internal data bus
(read access)
Internal write signal
Internal data bus
(write access)
Basic Operational Timing
Access to On-Chip Memory (RAM, ROM)
or
SUB
Figure 2.11 On-Chip Memory Access Cycle
T
1
state
Bus cycle
Address
Write data
Read data
T
2
state
SUB
). For details on these
SUB
to
41