at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 568

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

• BLKLEN: Data Block Length
This field determines the size of the data block.
This field is also accessible in the MCI Block Register (MCI_BLKR).
Bits 16 and 17 must be set to 0 if PDCFBYTE is disabled.
Note:
35.9.3
Name:
Access Type:
• DTOCYC: Data Timeout Cycle Number
Defines a number of Master Clock cycles with DTOMUL.
• DTOMUL: Data Timeout Multiplier
These fields determine the maximum number of Master Clock cycles that the MCI waits between two data block transfers.
It equals (DTOCYC x Multiplier).
Multiplier is defined by DTOMUL as shown in the following table:
If the data time-out set by DTOCYC and DTOMUL has been exceeded, the Data Time-out Error flag (DTOE) in the MCI
Status Register (MCI_SR) raises.
6221G–ATARM–31-Jan-08
0
0
0
0
1
1
1
1
31
23
15
–
–
–
7
–
In SDIO Byte mode, BLKLEN field is not used.
MCI Data Timeout Register
DTOMUL
0
0
1
1
0
0
1
1
30
22
14
MCI_DTOR
Read/write
–
–
–
6
0
1
0
1
0
1
0
1
DTOMUL
Multiplier
1
16
128
256
1024
4096
65536
1048576
29
21
13
–
–
–
5
28
20
12
–
–
–
4
27
19
11
–
–
–
3
26
18
10
–
–
–
2
DTOCYC
AT91SAM9260
25
17
–
–
–
9
1
24
16
–
–
–
8
0
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