DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 186
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: 186 of 847
- Download datasheet (6Mb)
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.
DDR to 1 in the port 8 data direction register (P8DDR) to enable CS
Set bit P8
output. In
1
3
ABWCR, make area 3 a 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
DDR to 1 in P8DDR to enable CS
DRAME to 0. Set bit P8
output.
1
3
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 Mar 21, 2006 page 156 of 814
REJ09B0302-0300
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