HD64F3048BF25 Renesas Electronics America, HD64F3048BF25 Datasheet - Page 197

IC H8 MCU FLASH 128K 100QFP

HD64F3048BF25

Manufacturer Part Number
HD64F3048BF25
Description
IC H8 MCU FLASH 128K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet

Specifications of HD64F3048BF25

Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
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)
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-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-

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7.3
7.3.1
One of three functions can be selected for the H8/3048B Group 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
PSRAME
DRAME
CAS/WE
M9/M8
RFSHE
RCYCE
CKS0
CMF
CMIE
P8
SRFMD
CKS2 to
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 Sep 27, 2006 page 169 of 872
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
REJ09B0325-0300

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