EM357-RTR datasheet(100/240 Pages) ETC2

100 / 240 page

EM351 / EM357

8-29

120-035X-000D

Preliminary

8.6.7

Registers

Refer to Registers (in the SPI Master Mode section) for a description of the SCx_DATA register.

SC1_UARTSTAT

UART Status Register

Address: 0x4000C848 Reset: 0x40

SC_UARTTXIDLE

SC_UARTPARERR

SC_UARTFRMERR

SC_UARTRXOVF

SC_UARTTXFREE

SC_UARTRXVAL

SC_UARTCTS

Bitname

Bitfield

Access

Description

SC_UARTTXIDLE

[6]

This bit is set when both the transmit FIFO and the transmit serializer are empty.

SC_UARTPARERR

[5]

This bit is set when the byte in the data register was received with a parity error. This bit

is updated when the data register is read, and is cleared if the receive FIFO is empty.

SC_UARTFRMERR

[4]

This bit is set when the byte in the data register was received with a frame error. This bit

is updated when the data register is read, and is cleared if the receive FIFO is empty.

SC_UARTRXOVF

[3]

This bit is set when the receive FIFO has been overrun. This occurs if a byte is received

when the receive FIFO is full. This bit is cleared by reading the data register.

SC_UARTTXFREE

[2]

This bit is set when the transmit FIFO has space for at least one byte.

SC_UARTRXVAL

[1]

This bit is set when the receive FIFO contains at least one byte.

SC_UARTCTS

[0]

This bit shows the logical state (not voltage level) of the nCTS input:

0: nCTS is deasserted (pin is high, 'XOFF', RS232 negative voltage); the UART is inhibited

from starting to transmit a byte.

1: nCTS is asserted (pin is low, 'XON', RS232 positive voltage); the UART may transmit.

EM357-RTR 数据表(PDF) 100 Page - List of Unclassifed Manufacturers

EM357-RTR 数据表(HTML) 100 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载