R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 749
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
600MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
108
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1 V ~ 1.2 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
436-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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14.4.4
After intended transfer conditions are set to SAR, DAR, TCR, CHCR, DMAOR, and DMARS, the
DMAC transfers data according to the following procedure.
1. Checks if transfer is enabled (DE = 1, DME = 1, TE = 0, AE = 0, NMIF = 0)
2. When a transfer request occurs while transfer is enabled, the DMAC transfers one transfer unit
3. When the specified number of transfers has been completed (when TCR is 0), the transfer ends
4. When an address error or an NMI interrupt is generated by the DMAC, the transfer is aborted.
Figure 14.11 shows a flowchart of DMA transfer.
of data (depending on the settings of TS0, TS1, and TS2). In auto-request mode, the transfer
starts automatically when the DE and DME bits are set to 1. The TCR is decremented for each
transfer. The actual transfer flows depend on address mode and bus mode.
successfully. If the IE bit in CHCR is set to 1 at this time, a DMINT interrupt is sent to the
CPU.
Transfers are also aborted when the DE bit in CHCR or the DME bit in DMAOR is cleared to
0.
DMA Transfer Flow
14. Direct Memory Access Controller (DMAC)
Rev.1.00 Jan. 10, 2008 Page 717 of 1658
REJ09B0261-0100
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