DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 198
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048BVX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 7 Refresh Controller
DRAM Interface
To set up area 3 for connection to 16-bit-wide DRAM, initialize RTCOR, RTMCSR, and
RFSHCR in that order, clearing bit PSRAME to 0 and setting bit DRAME to 1. Set bit P8
1 in the port 8 data direction register (P8DDR) to enable CS
16-bit-access area.
Pseudo-Static RAM Interface
To set up area 3 for connection to pseudo-static RAM, initialize RTCOR, RTMCSR, and
RFSHCR in that order, setting bit PSRAME to 1 and clearing bit DRAME to 0. Set bit P8
1 in P8DDR to enable CS
Interval Timer
When PSRAME = 0 and DRAME = 0, the refresh controller operates as an interval timer. After
setting RTCOR, select an input clock in RTMCSR and set the CMIE bit to 1. CMI interrupts will
be requested at compare match intervals determined by RTCOR and bits CKS2 to CKS0 in
RTMCSR.
When setting RTCOR, RTMCSR, and RFSHCR, make sure that PSRAME = 0 and DRAME = 0.
Writing is disabled when either of these bits is set to 1.
Rev. 3.00 Sep 27, 2006 page 170 of 872
REJ09B0325-0300
3
output.
3
output. In ABWCR, make area 3 a
1
1
DDR to
DDR to
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