HD6417709SF133B Renesas Electronics America, HD6417709SF133B Datasheet - Page 395
HD6417709SF133B
Manufacturer Part Number
HD6417709SF133B
Description
IC SUPERH MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417709SBP167BV.pdf
(809 pages)
Specifications of HD6417709SF133B
Core Processor
SH-3
Core Size
32-Bit
Speed
133MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 2.05 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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11.3.3
Channel Priority
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 priority bits PR1 and PR0 in the DMA operation register (DMAOR).
Fixed Mode: In these modes, the priority order of the channels remain fixed. There are three kinds
of fixed modes as follows:
CH0 > CH1 > CH2 > CH3
CH0 > CH2 > CH3 > CH1
CH2 > CH0 > CH1 > CH3
These are selected by the PR1 and PR0 bits in DMAOR.
Round-Robin Mode: Each time one word, byte, or longword 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 11.3. The priority of the
round-robin mode is CH0 > CH1 > CH2 > CH3 immediately after reset.
Rev. 5.00, 09/03, page 349 of 760
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