DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 209
DF3052BX25V
Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3052BX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 209 of 847
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Contention between RTCOR Write and Compare Match: If a compare match occurs in the T
state of an RTCOR write cycle, writing takes priority and the compare match signal is inhibited.
See figure 7.22.
RTCNT Operation at Internal Clock Source Switchover: Switching internal clock sources may
cause RTCNT to increment, depending on the switchover timing. Table 7.9 shows the relation
between the time of the switchover (by writing to bits CKS2 to CKS0) and the operation of
RTCNT.
The RTCNT input clock is generated from the internal clock source by detecting the falling edge
of the internal clock. If a switchover is made from a high clock source to a low clock source, as in
case No. 3 in table 7.9, the switchover will be regarded as a falling edge, an RTCNT clock pulse
will be generated, and RTCNT will be incremented.
Figure 7.22 Contention between RTCOR Write and Compare Match
Address bus
Internal
write signal
RTCNT
RTCOR
Compare
match signal
RTCOR write cycle by CPU
T
1
RTCNT address
N
N
T
2
Rev. 3.00 Mar 21, 2006 page 179 of 814
RTCOR write data
T
3
Section 7 Refresh Controller
N + 1
Inhibited
M
REJ09B0302-0300
3
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