HD6473937RXV Renesas Electronics America, HD6473937RXV Datasheet - Page 99

• Manufacturer Part Number: HD6473937RXV
• Description: MCU 3/5V 60K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD6473937RXV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 59
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 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: Contains lead / RoHS non-compliant
• Eeprom Size: -

4.1
Clock oscillator circuitry (CPG: clock pulse generator) is provided on-chip, including both a
system clock pulse generator and a subclock pulse generator. The system clock pulse generator
consists of a system clock oscillator and system clock dividers. The subclock pulse generator
consists of a subclock oscillator circuit and a subclock divider.
4.1.1
Figure 4-1 shows a block diagram of the clock pulse generators.
OSC
OSC
4.1.2
The basic clock signals that drive the CPU and on-chip peripheral modules are ø and ø
the clock signals have names: ø is the system clock, ø
clock, ø
The clock signals available for use by peripheral modules are ø/2, ø/4, ø/8, ø/16, ø/32, ø/64, ø/128,
ø/256, ø/512, ø/1024, ø/2048, ø/4096, ø/8192, ø
and ø
DX
DX
1
2
1
2
DEC
w
. The clock requirements differ from one module to another.
System clock pulse generator
Subclock pulse generator
System clock
is the watch clock, and ø
Overview
Block Diagram
System Clock and Subclock
Subclock
oscillator
oscillator
Figure 4-1 Block Diagram of Clock Pulse Generators
Section 4 Clock Pulse Generators
Subclock
oscillator
(1/2)
(f
ø
OSC
OSC
)
DEC
ø
(f )
W
W
is the decoder clock.
System clock
(1/2, 1/4, 1/8)
divider (1/2)
Subclock
divider
W
, ø
W
ø
ø /2
ø /4
ø /8
/2, ø
SUB
OSC
W
W
W
/2
System
divider
is the subclock, ø
W
clock
/4, ø
W
/8, ø
ø
ø
ø
ø
OSC
OSC
OSC
OSC
/128
/64
/32
/16
W
/16, ø
OSC
W
is the oscillator
Prescaler W
/32, ø
Prescaler S
(13 bits)
ø
ø
(5 bits)
SUB
W
/64, ø
SUB
. Five of
W
ø/2
to
ø/8192
ø
ø /2
ø /4
ø /8
to
ø /128
ø
/128,
W
W
W
W
DEC
W
85