D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 439
![IC SUPER H MPU ROMLESS 208QFP](/photos/12/31/123145/d6417729rhf200bv_sml.jpg)
D6417729RHF200BV
Manufacturer Part Number
D6417729RHF200BV
Description
IC SUPER H MPU ROMLESS 208QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417729RF133BV.pdf
(857 pages)
Specifications of D6417729RHF200BV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.85 V ~ 2.15 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-QFP Exposed Pad, 208-eQFP, 208-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Part Number:
D6417729RHF200BV
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12.3.3
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 12.3. The priority of the
round-robin mode is CH0 > CH1 > CH2 > CH3 immediately after reset.
Rev. 5.0, 09/03, page 391 of 806
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