st20-gp1 STMicroelectronics, st20-gp1 Datasheet - Page 81
st20-gp1
Manufacturer Part Number
st20-gp1
Description
Gps Processor
Manufacturer
STMicroelectronics
Datasheet
1.ST20-GP1.pdf
(116 pages)
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ASCControl register
This register controls the operating mode of the ASC and contains control bits for mode and error
check selection, and status flags for error identification.
Note: Programming the mode control field (Mode) to one of the reserved combinations may result
in unpredictable behavior.
Note: Serial data transmission or reception is only possible when the baud rate generator run bit
(Run) is set to 1. When the Run bit is set to 0, TXD will be 1. Setting the Run bit to 0 will
immediately freeze the state of the transmitter and receiver. This should only be done when the
ASC is idle.
ASCRxBuffer
Bit
0
1
2
3
4
5
6
7
8
15:9
Bit field
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7/Parity
RD8/Parity/
Wake/X
Function
Receive buffer data D0
Receive buffer data D1
Receive buffer data D2
Receive buffer data D3
Receive buffer data D4
Receive buffer data D5
Receive buffer data D6
Receive buffer data D7, or parity bit - dependent on the operating mode (the setting of the
Mode bit in the ASCControl register).
Note: If the Mode field selects a 7-bit frame then this bit is undefined. Software should ignore
this bit when reading 7-bit frames.
Receive buffer data D8, or parity bit, or wake-up bit - dependent on the operating mode (the
setting of the Mode field in the ASCControl register).
Note: If the Mode field selects a 7- or 8-bit frame then this bit is undefined. Software should
ignore this bit when reading 7- or 8-bit frames.
RESERVED. Will read back 0.
ASC base address + #08
Table 13.4 ASCRxBuffer register format
ST20-GP1
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