Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Fiche De Données
Codes de produits
AT91SAM9N12-EK
598
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
35.14.8 HSMCI Completion Signal Timeout Register
Name: HSMCI_CSTOR
Address:
0xF000801C
Access: Read/Write
This register can only be written if the WPEN bit is cleared in
.
• CSTOCYC: Completion Signal Timeout Cycle Number
This field determines the maximum number of Master Clock cycles that the HSMCI waits between two data block transfers. Its
value is calculated by (CSTOCYC x Multiplier).
value is calculated by (CSTOCYC x Multiplier).
• CSTOMUL: Completion Signal Timeout Multiplier
This field determines the maximum number of Master Clock cycles that the HSMCI waits between two data block transfers. Its
value is calculated by (CSTOCYC x Multiplier).
value is calculated by (CSTOCYC x Multiplier).
These fields determine the maximum number of Master Clock cycles that the HSMCI waits between the end of the data transfer
and the assertion of the completion signal. The data transfer comprises data phase and the optional busy phase. If a non-DATA
ATA command is issued, the HSMCI starts waiting immediately after the end of the response until the completion signal.
and the assertion of the completion signal. The data transfer comprises data phase and the optional busy phase. If a non-DATA
ATA command is issued, the HSMCI starts waiting immediately after the end of the response until the completion signal.
Multiplier is defined by CSTOMUL as shown in the following table:
If the data time-out set by CSTOCYC and CSTOMUL has been exceeded, the Completion Signal Time-out Error flag (CSTOE) in
the HSMCI Status Register (HSMCI_SR) rises.
the HSMCI Status Register (HSMCI_SR) rises.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
CSTOMUL
CSTOCYC
Value
Name
Description
0
1
CSTOCYC x 1
1
16
CSTOCYC x 16
2
128
CSTOCYC x 128
3
256
CSTOCYC x 256
4
1024
CSTOCYC x 1024
5
4096
CSTOCYC x 4096
6
65536
CSTOCYC x 65536
7
1048576
CSTOCYC x 1048576