AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 1077
AT91SAM9G45-EKES
Manufacturer Part Number
AT91SAM9G45-EKES
Description
KIT EVAL FOR AT91SAM9G45
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr
Datasheets
1.AT91SAM9G45-EKES.pdf
(56 pages)
2.AT91SAM9G45-EKES.pdf
(1218 pages)
3.AT91SAM9G45-EKES.pdf
(66 pages)
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
- Current page: 1077 of 1218
- Download datasheet (19Mb)
43.8.10
Register Name: AC97C_COSR
Address:
Access Type:
• TXRDY: Channel Transmit Ready
0: Data has been loaded in Channel Transmit Register and is waiting to be loaded in the Channel Transmit Shift Register.
1: Channel Transmit Register is empty.
• TXEMPTY: Channel Transmit Empty
0: Data remains in the Channel Transmit Register or is currently transmitted from the Channel Transmit Shift Register.
1: Data in the Channel Transmit Register have been loaded in the Channel Transmit Shift Register and sent to the codec.
• UNRUN: Transmit Underrun
Active only when Variable Rate Mode is enabled (VRA bit set in the AC97C_MR register). Automatically cleared by a pro-
cessor read operation.
0: No data has been requested from the channel since the last read of the Status Register, or data has been available each
time the CODEC requested new data from the channel since the last read of the Status Register.
1: Data has been emitted while no valid data to send has been previously loaded into the Channel Transmit Shift Register
since the last read of the Status Register.
• RXRDY: Channel Receive Ready
0: Channel Receive Holding Register is empty.
1: Data has been received and loaded in Channel Receive Holding Register.
• OVRUN: Receive Overrun
Automatically cleared by a processor read operation.
0: No data has been loaded in the Channel Receive Holding Register while previous data has not been read since the last
read of the Status Register.
1: Data has been loaded in the Channel Receive Holding Register while previous data has not yet been read since the last
read of the Status Register.
1077
31
23
15
–
–
–
7
–
AT91SAM9G45
AC97 Controller Codec Status Register
0xFFFAC048
Read-only
30
22
14
–
–
–
6
–
OVRUN
29
21
13
–
–
–
5
RXRDY
28
20
12
–
–
–
4
27
19
11
–
–
–
3
–
UNRUN
26
18
10
–
–
–
2
TXEMPTY
25
17
–
–
9
–
1
6438F–ATARM–21-Jun-10
TXRDY
24
16
–
–
8
–
0
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