at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 387

• Manufacturer Part Number: at91rm3400
• Description: Atmel Advanced At91 Arm Microcontroller
• Manufacturer: ATMEL Corporation

MCI Command Register
Name:
Access Type:
This register is write-protected while CMDRDY is 0 in MCI_SR and in the case of a no Interrupt command sent (bit
SPCMD). This means that the current command execution cannot be interrupted or modified.
• CMDNB: Command Number
• RSPTYP: Response Type
• SPCMD: Special CMD
• OPDCMD: Open Drain Command
0 = Push pull command
1 = Open drain command
1790A–ATARM–11/03
31
23
15
–
–
–
7
0
0
1
1
0
0
0
0
1
1
RSPTYP
RSP
MCI_CMDR
Write-only
SPCMD
30
22
14
–
–
–
6
0
0
1
1
0
0
0
1
0
1
Response Type
No response.
48-bit response.
136-bit response.
Reserved.
29
21
13
–
–
–
5
0
1
0
1
0
1
MAXLAT
CMD
Not a special CMD.
Initialization CMD:
74 clock cycles for initialization sequence.
Synchronized CMD:
Wait for the end of the current data block transfer before sending the pending
command.
Reserved.
Interrupt command:
Corresponds to the Interrupt Mode (CMD40).
Interrupt response:
Corresponds to the Interrupt Mode (CMD40).
28
20
12
–
–
4
OPDCMD
TRTYPE
27
19
11
–
3
CMDNB
TRDIR
26
18
10
–
2
SPCMD
AT91RM3400
25
17
–
9
1
TRCMD
24
16
–
8
0
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