DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 185
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
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7.3
7.3.1
One of three functions can be selected for the H8/3052BF refresh controller: interfacing to DRAM
connected to area 3, interfacing to pseudo-static RAM connected to area 3, or interval timing.
Table 7.3 summarizes the register settings when these three functions are used.
Table 7.3
Register Settings
RFSHCR
RTCOR
RTMCSR
P8DDR
ABWCR
Operation
Overview
Refresh Controller Settings
P8
SRFMD
PSRAME
DRAME
CAS/WE
M9/M8
RFSHE
RCYCE
CKS2 to
CKS0
CMF
CMIE
ABW3
1
DDR
DRAM Interface
Selects self-refresh
mode
Cleared to 0
Set to 1
Selects 2CAS or
2WE mode
Selects column
addressing mode
Selects RFSH signal
output
Selects insertion of
refresh cycles
Refresh interval
setting
Set to 1 when
RTCNT = RTCOR
Cleared to 0
Set to 1 (CS
Cleared to 0
3
output)
PSRAM Interface
Selects self-refresh
mode
Set to 1
Cleared to 0
—
—
Selects RFSH signal
output
Selects insertion of
refresh cycles
Refresh interval
setting
Set to 1 when
RTCNT = RTCOR
Cleared to 0
Set to 1 (CS
—
Rev. 3.00 Mar 21, 2006 page 155 of 814
Usage
3
output)
Section 7 Refresh Controller
Interval Timer
Cleared to 0
Cleared to 0
Cleared to 0
—
—
Cleared to 0
—
Interrupt interval
setting
Set to 1 when
RTCNT = RTCOR
Enables or disables
interrupt requests
Set to 0 or 1
—
REJ09B0302-0300
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