r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1380
r5s77631ay266bgv
Manufacturer Part Number
r5s77631ay266bgv
Description
Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S77631AY266BGV.pdf
(2026 pages)
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Section 31 Multimedia Card Interface (MMCIF)
• INTSTR1
Rev. 1.00 Oct. 01, 2007 Page 1314 of 1956
REJ09B0256-0100
Bit
7 to 4
3
2
Bit Name
—
WRERI
CRCERI
Initial value:
Initial
Value
All 0
0
0
R/W:
Bit:
—
R
7
0
R/W
R
R/(W)* Write Error Flag
R/(W)* CRC Error Flag
—
R
6
0
Description
Reserved
These bits are always read as 0. The write
value should always be 0.
[Setting 1 condition]
When a status error (write error) for
transmit data response is detected while
WREIE = 1.
[Clearing 0 condition]
Write 0 after reading WREI = 1.
Note:
[Setting 1 condition]
When a CRC error for command response
or receive data or a CRC status error for
transmit data response is detected while
CRCERIE = 1.
For the command response other than R2,
CRC is checked when the RTY4 in
RSPTYR is enabled.
For the R2 command response, CRC is
not checked, thus this flag is not set.
[Clearing 0 condition]
Write 0 after reading CRCERI = 1.
Note:
—
R
5
0
—
R
4
0
When the write error occurs,
abort the command sequence by
setting the CMDOFF bit to 1.
When the CRC error occurs,
abort the command sequence by
setting the CMDOFF bit to 1.
WRERI CRCERI DTERI CTERI
R/(W)* R/(W)* R/(W)* R/(W)*
3
0
2
0
1
0
0
0
Interrupt
output
ERR
ERR
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