R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1044
![IC SUPERH MPU ROMLESS 499BGA](/photos/12/43/124352/r5s77631y266bgv_sml.jpg)
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
Specifications of R5S77631Y266BGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
266MHz
Connectivity
Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
107
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
499-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 23 Gigabit Ethernet Controller (GETHER)
(2)
If an error occurs during reception in the case of a multi-buffer frame where a receive frame is
divided for storage in multiple buffers, the E-DMAC performs the processing shown in figure
23.13.
In the figure, the invalid receive descriptors (with the RACT bit cleared to 0) represent the
successful reception of data to be stored in buffers, and the valid receive descriptors (with the
RACT bit set to 1) represent unreceived buffers. If a frame receive error occurs with a descriptor
shown in the figure, the status is written back to the corresponding descriptor.
If error interrupts are enabled in EESIPR, an interrupt is generated immediately after the write-
back. If there is a new frame receive request, reception is continued from the buffer after that in
which the error occurred.
Rev. 2.00 May 22, 2009 Page 974 of 1982
REJ09B0256-0200
E-DMAC
Receive Processing in the Case of Multi-Buffer Frame
Inactivates RATC and writes RFE, RFS
Descriptor read
Figure 23.13 E-DMAC Operation after Receive Error
T
A
C
T
0
0
0
1
1
1
1
1
1
D
T
L
E
0
0
0
0
0
0
0
0
1
Descriptors
T
F
P
1
1
0
0
0
0
0
0
0
1
T
F
P
0
0
0
0
0
0
0
0
0
0
Continune
Continune
Frame
Type
Start
Start of frame
Receive error
occurence
New frame reception
continues from this buffer
Buffer length set
by descriptor
Transmitted data
Untransmitted dara
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