AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 800

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

36.13.7
Name:
Addresses:
Access:
• BCNT: MMC/SDIO Block Count - SDIO Byte Count
This field determines the number of data byte(s) or block(s) to transfer.
The transfer data type and the authorized values for BCNT field are determined by the TRTYP field in the HSMCI Com-
mand Register (HSMCI_CMDR):
Warning: In SDIO Byte and Block modes, writing to the 7 last bits of BCNT field, is forbidden and may lead to unpredict-
able results.
• BLKLEN: Data Block Length
This field determines the size of the data block.
This field is also accessible in the HSMCI Mode Register (HSMCI_MR).
Bits 16 and 17 must be set to 0 if FBYTE is disabled.
Note:
6438F–ATARM–21-Jun-10
0
1
1
Other values
31
23
15
TRTYP
7
In SDIO Byte mode, BLKLEN field is not used.
0
0
0
HSMCI Block Register
1
0
1
Type of Transfer
MMC/SDCard Multiple Block
SDIO Byte
SDIO Block
-
30
22
14
HSMCI_BLKR
0xFFF80018 (0), 0xFFFD0018 (1)
Read-write
6
29
21
13
5
BCNT Authorized Values
From 1 to 65635: Value 0 corresponds to an infinite block transfer.
From 1 to 512 bytes: Value 0 corresponds to a 512-byte transfer.
Values from 0x200 to 0xFFFF are forbidden.
From 1 to 511 blocks: Value 0 corresponds to an infinite block transfer.
Values from 0x200 to 0xFFFF are forbidden.
Reserved.
28
20
12
4
BLKLEN
BLKLEN
BCNT
BCNT
27
19
11
3
26
18
10
2
AT91SAM9G45
25
17
9
1
24
16
8
0
800