DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 218
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 7 Refresh Controller
7.3.4
To use the refresh controller as an interval timer, clear the PSRAME and DRAME both to 0. After
setting RTCOR, select a clock source with bits CKS2 to CKS0 in RTMCSR, and set the CMIE bit
to 1.
Timing of Setting of Compare Match Flag and Clearing by Compare Match
The CMF flag in RTCSR is set to 1 by a compare match signal output when the RTCOR and
RTCNT values match. The compare match signal is generated in the last state in which the values
match (when RTCNT is updated from the matching value to a new value). Accordingly, when
RTCNT and RTCOR match, the compare match signal is not generated until the next counter
clock pulse. Figure 7.19 shows the timing.
Operation in Power-Down State
The interval timer function operates in sleep mode. It does not operate in hardware standby mode.
In software standby mode RTCNT and RTMCSR bits 7 and 6 are initialized, but RTMCSR bits 5
to 3 and RTCOR retain their settings prior to the transition to software standby mode.
Rev. 3.00 Sep 27, 2006 page 190 of 872
REJ09B0325-0300
RTCNT
RTCOR
Compare
match signal
CMF flag
Interval Timer
Figure 7.19 Timing of Setting of CMF Flag
N
N
H'00
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