HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 186
HD64F3048VTF8
Manufacturer Part Number
HD64F3048VTF8
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3048F16.pdf
(907 pages)
Specifications of HD64F3048VTF8
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)
2.7 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F3048VX8
- Current page: 186 of 907
- Download datasheet (6Mb)
Section 7 Refresh Controller
Features as an Interval Timer
7.1.2
Figure 7.1 shows a block diagram of the refresh controller.
Rev. 7.00 Sep 21, 2005 page 160 of 878
REJ09B0259-0700
RFSH signal output for refresh control
Software-selectable refresh interval
Software-selectable self-refresh mode
Wait states can be inserted
Refresh timer counter (RTCNT) can be used as an 8-bit up-counter
Selection of seven counter clock sources: /2, /8, /32, /128, /512, /2048, /4096
Interrupts can be generated by compare match between RTCNT and the refresh time constant
register (RTCOR)
Block Diagram
Legend
RTCNT:
RTCOR:
RTMCSR:
RFSHCR:
/2, /8, /32,
/128, /512,
/2048, /4096
Figure 7.1 Block Diagram of Refresh Controller
Clock selector
Comparator
Refresh timer counter
Refresh time constant register
Refresh timer control/status register
Refresh control register
Module data bus
Refresh signal
Control logic
CMI interrupt
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