HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1105
HD6417320
Manufacturer Part Number
HD6417320
Description
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417320.pdf
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31.3.10 Command Timeout Control Register (CTOCR)
CTOCR specifies a cycle to generate a timeout for the command response.
When receiving the command response, CTOUTC continues counting the transfer clock, and
enters the command timeout error state when the number of transfer clock reaches the number
specified in CTOCR. When the CTERIE bit in INTCR1 is set to 1, the CTERI flag in INTSTR1 is
set. To perform command timeout error handling, the command sequence should be aborted by
setting the CMDOFF bit to 1, and then the CTERI flag should be cleared.
Note: When R2 response (17-byte command response) is required, a timeout is generated during
Bit
7 to 1
0
response reception if the CTSEL0 bit is set to 0. Therefore, set the CTSEL0 bit to 1.
Bit Name
CTSEL0 1
Initial
Value
All 0
R/W
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
0: 128 transfer clocks from command transmission completion
1: 256 transfer clocks from command transmission completion
to response reception completion
to response reception completion
Section 31
Rev. 3.00 Jan. 18, 2008 Page 1043 of 1458
MultiMediaCard Interface (MMCIF)
REJ09B0033-0300
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