HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 238

• 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: -

9.6.5
Input Clock Switching and TCG Operation: Depending on when the input clock is switched,
there will be cases in which TCG is incremented in the process. Table 9.17 shows the relation
between internal clock switchover timing (selected in bits CKS1 and CKS0) and TCG operation.
If an internal clock (derived from the system clock or subclock
is generated when a falling edge of the internal clock is detected. For this reason, in a case like No.
3 in table 9.17, where the clock is switched at a time such that the clock signal goes from high
level before switching to low level after switching, the switchover is seen as a falling edge, a count
clock pulse is generated, and TCG is incremented.
Table 9.17 Internal Clock Switching and TCG Operation
No.
1
2
Clock Level Before
and After Modifying
Bits CKS1 and CKS0
Goes from low level
to low level
Goes from low level
to high level
Application Notes
TCG Operation
Clock before
switching
Clock after
switching
Count clock
TCG
Clock before
switching
Clock after
switching
Count clock
TCG
N
N
CKS bits modified
SUB
N +1
) is used, an increment pulse
CKS bits modified
N +1
N +2
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