EM250
?
?
?
?
Character transmitted (0 to 1 transition of SC_I2CTXFIN )
Character received (0 to 1 transition of SC_I2CRXFIN )
Received and lost character while receive FIFO was full (Receive overrun error)
Transmitted character while transmit FIFO was empty (Transmit underrun error)
To generate interrupts to the CPU, the interrupt masks in the INT_SC1CFG and INT_CFG registers must be
enabled.
5.2.4
SC1_MODE [0x44AA]
Registers
15
0-R
0
0
0-R
7
14
0-R
0
0
0-R
6
13
0-R
0
0
0-R
5
12
0-R
0
0
0-R
4
11
0-R
0
0
0-R
3
10
0-R
0
0
0-R
2
9
0-R
0
0-RW
1
SC1_MODE
8
0-R
0
0-RW
0
SC1_MODE
[1:0]
SC1 Mode: 0 = disabled; 1 = UART mode; 2 = SPI mode; 3 = I2C mode. NOTE: To change
between modes, the previous mode must be disabled first.
SC1_DATA [0x449E]
15
0-R
0
14
0-R
0
13
0-R
0
12
0-R
0
11
0-R
0
10
0-R
0
9
0-R
0
8
0-R
0
SC1_DATA
0-RW
7
0-RW
6
0-RW
5
0-RW
4
0-RW
3
0-RW
2
0-RW
1
0-RW
0
SC1_DATA
[7:0]
Transmit and receive data register. Writing to this register pushes a byte onto the transmit
FIFO. Reading from this register pulls a byte from the receive FIFO.
SC1_UARTPER [0x44B4]
15
0-RW
14
0-RW
13
0-RW
12
0-RW
11
0-RW
10
0-RW
9
0-RW
8
0-RW
SC1_UARTPER
SC1_UARTPER
0-RW
7
0-RW
6
0-RW
5
0-RW
4
0-RW
3
0-RW
2
0-RW
1
0-RW
0
SC1_UARTPER
120-0082-000V Rev 1.1
[15:0]
The baud rate period (N) of the clock rate as seen in the equation: rate = 24MHz / ( 2 * ( N +
(0.5*F) ) )
Page 48
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