R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 657
R8A77800ANBGAV
Manufacturer Part Number
R8A77800ANBGAV
Description
IC SUPERH MPU ROMLESS 449-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77800ANBGV.pdf
(1342 pages)
Specifications of R8A77800ANBGAV
Core Processor
SH-4A
Core Size
32-Bit
Speed
400MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
75
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
449-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:
R8A77800ANBGAV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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As explained above, a repeat mode transfer enables sequential voice compression by changing
buffer for storing data received consequentially and a data buffer for processing signals
alternately.
14.4.6
In a reload mode transfer, according to the settings of bits RPT[2:0] in CHCR, the value set in
SARB/DARB is set to SAR/DAR and the value of bits TCRB[23:16] is set in bits TCRB[7:0] at
each transfer set in the bits TCRB[7:0], and the transfer is repeated until TCR becomes 0 without
specifying the transfer settings again. A reload mode transfer is effective when repeating data
transfer with specific area. Figure 14.12 shows the operation of reload mode transfer.
When a reload mode transfer is executed, TCRB is used as a reload counter. Set TCRB according
to section 14.3.6, DMA Transfer Count Registers B0 to B3, B6 to B9 (TCRB0 to TCRB3, TCRB6
to TCRB9).
not cleared in the procedure 4, then the transfer is stopped according to the condition of both
the HE and the TE bits are set to 1.
Transfer request
Reload Mode Transfer
DMAC
Reload controller
Figure 14.12 Reload Mode Transfer
Section 14 Direct Memory Access Controller (DMAC)
Reload signal
Bits RPT[2:0]
Rev.1.00 Dec. 13, 2005 Page 605 of 1286
Transfer counter
Reload counter
SARB/DARB
SAR/DAR
CHCR
TCRB
TCR
REJ09B0158-0100
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