M30280FAHP#U5B Renesas Electronics America, M30280FAHP#U5B Datasheet - Page 113
M30280FAHP#U5B
Manufacturer Part Number
M30280FAHP#U5B
Description
IC M16C/28 MCU FLASH 96K 80LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/Tiny/28r
Specifications of M30280FAHP#U5B
Core Size
16-Bit
Program Memory Size
96KB (96K x 8)
Core Processor
M16C/60
Speed
20MHz
Connectivity
I²C, IEBus, SIO, UART/USART
Peripherals
DMA, POR, PWM, Voltage Detect, WDT
Number Of I /o
71
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
80-LQFP
Controller Family/series
M16C
No. Of I/o's
71
Ram Memory Size
8KB
Cpu Speed
20MHz
No. Of Timers
10
Digital Ic Case Style
LQFP
Embedded Interface Type
I2C, UART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
R0K330290S000BE - KIT EVAL STARTER FOR M16C/29M30290T2-CPE - EMULATOR COMPACT M16C/26A/28/29M30290T2-CPE-HP - EMULATOR COMPACT FOR M16C/TINY
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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11.1 Transfer Cycles
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The transfer cycle consists of a memory or SFR read (source read) bus cycle and a write (destination write)
bus cycle. The number of read and write bus cycles is affected by the source and destination addresses of
transfer. Furthermore, the bus cycle itself is extended by a software wait.
11.1.1 Effect of Source and Destination Addresses
11.1.2 Effect of Software Wait
Figure 11.5 shows the example of the cycles for a source read. For convenience, the destination write
cycle is shown as one cycle and the source read cycles for the different conditions are shown. In reality, the
destination write cycle is subject to the same conditions as the source read cycle, with the transfer cycle
changing accordingly. When calculating transfer cycles, take into consideration each condition for the
source read and the destination write cycle, respectively. For example, when data is transferred in 16 bit
units and when both the source address and destination address are an odd address ((2) in Figure 11.5),
two source read bus cycles and two destination write bus cycles are required.
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If the transfer unit is 16 bits and the source address of transfer begins with an odd address, the source
read cycle consists of one more bus cycle than when the source address of transfer begins with an even
address.
Similarly, if the transfer unit is 16 bits and the destination address of transfer begins with an odd address,
the destination write cycle consists of one more bus cycle than when the destination address of transfer
begins with an even address.
For memory or SFR accesses in which one or more software wait states are inserted, the number of bus
cycles required for that access increases by an amount equal to software wait states.
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page 93
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11. DMAC
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