HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 303

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

10.6
This section describes contention and other matters requiring special attention during ITU
operations.
10.6.1
If a counter clear signal occurs in the T3 state of a TCNT write cycle, clearing the counter takes
priority and the write is not performed. The timing is shown in figure 10.58.
Notes and Precautions
Contention between TCNT Write and Clear
Counter clear signal
Internal write signal
Figure 10.58 Contention between TCNT Write and Clear
Address
TCNT
CK
TCNT write cycle by CPU
T1
TCNT address
N
T2
T3
H' 0000
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