HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 319
HD6417706F133
Manufacturer Part Number
HD6417706F133
Description
IC SUPERH MPU ROMLESS 176LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417706F133V.pdf
(751 pages)
Specifications of HD6417706F133
Core Processor
SH-3
Core Size
32-Bit
Speed
133MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
103
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.75 V ~ 2.05 V
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
176-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
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The DMA transfer request signals of table 9.3 are automatically withdrawn when the
corresponding DMA transfer is performed. If the cycle-steal mode is being used, they are
withdrawn at the first transfer; if the burst mode is being used, they are withdrawn at the last
transfer.
9.4.3
When the DMAC receives simultaneous transfer requests on two or more channels, it selects a
channel according to a predetermined priority order. Two modes (fixed mode and round-robin
mode) are selected by the priority bits PR1 and PR0 in the DMA operation register (DMAOR).
Fixed Mode: In this mode, the priority levels among the channels remain fixed. There are three
kinds of fixed modes as follows:
These are selected by the PR1 and the PR0 bits in the DMA operation register (DMAOR).
Round-Robin Mode: Each time one word, byte, or longword, or 16-byte data is transferred on
one channel, the priority order is rotated. The channel on which the transfer was just finished
rotates to the bottom of the priority order. The round-robin mode operation is shown in figure 9.3.
The priority of the round-robin mode is CH0 > CH1 > CH2 > CH3 immediately after a reset.
CH0 > CH1 > CH2 > CH3
CH0 > CH2 > CH3 > CH1
CH2 > CH0 > CH1 > CH3
Channel Priority
Section 9 Direct Memory Access Controller (DMAC)
Rev. 5.00 May 29, 2006 page 269 of 698
REJ09B0146-0500
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