DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 430

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• 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: -

Section 10 16-Bit Integrated Timer Unit (ITU)
Contention between TCNT Byte Write and Increment
If an increment pulse occurs in the T
and TCNT is not incremented. The TCNT byte that was not written retains its previous value. See
figure 10.63, which shows an increment pulse occurring in the T
Rev. 3.00 Sep 27, 2006 page 402 of 872
REJ09B0325-0300
Figure 10.63 Contention between TCNT Byte Write and Increment
Address bus
Internal write signal
TCNT input clock
TCNTH
TCNTL
2
or T
3
state of a TCNT byte write cycle, writing takes priority
T
TCNTH byte write cycle
1
N
X
TCNTH address
TCNT write data
T
2
X + 1
2
state of a byte write to TCNTH.
T
3
M
X