DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 480
DF3048BVX25V
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048BVX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 12 Watchdog Timer
12.4
During interval timer operation, an overflow generates an interval timer interrupt (WOVI). The
interval timer interrupt is requested whenever the OVF bit is set to 1 in TCSR.
12.5
Contention between TCNT Write and Increment
If a timer counter clock pulse is generated during the T
takes priority and the timer count is not incremented. See figure 12.8.
Changing CKS2 to CKS0 Values
Halt TCNT by clearing the TME bit to 0 in TCSR before changing the values of bits CKS2 to
CKS0.
Rev. 3.00 Sep 27, 2006 page 452 of 872
REJ09B0325-0300
Interrupts
Usage Notes
TCNT
Internal write
signal
TCNT input
clock
TCNT
Figure 12.8 Contention between TCNT Write and Increment
Write cycle: CPU writes to TCNT
T
1
N
T
2
3
state of a write cycle to TCNT, the write
T
3
M
Counter write data
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