HD6473228F10V Renesas Electronics America, HD6473228F10V Datasheet - Page 171

• Manufacturer Part Number: HD6473228F10V
• Description: MCU 5V 32K,PB-FREE 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/325r

Specifications of HD6473228F10V

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI, UART/USART
• Number Of I /o: 53
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

8.6 Application Notes
Application programmers should note that the following types of contention can occur in the 8-bit
timer.
(1) Contention between TCNT Write and Clear: If an internal counter clear signal is generated
during the T
is not performed.
Figure 8-13 shows this type of contention.
H’00
H’FF
TCORA
TCORB
TMO pin
3
state of a write cycle to the timer counter, the clear signal takes priority and the write
Internal Address
bus
Internal write
signal
Counter clear
signal
TCNT
Figure 8-13. TCNT Write-Clear Contention
Ø
Figure 8-12. Example of Pulse Output
TCNT
Write cycle: CPU writes to TCNT
T
1
N
TCNT address
164
T
2
Clear counter
T
3
Figure 7-13
H’00