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Description of the data path
OSCAR Technical Manual V2.4.0
96
To configure this feature in access control register (CSR):
Offset Name Field Bit Description
000h SERIAL_MODE_REG Baud_Rate [0..7] Baud rate setting
WR: Set baud rate
RD: Read baud rate
0: 300 bps
1: 600 bps
2: 1200 bps
3: 2400 bps
4: 4800 bps
5: 9600 bps
6: 19200 bps
7: 38400 bps
8: 57600 bps
9: 115200 bps
10: 230400 bps
Other values reserved
Char_Length [8..15] Character length setting
WR: Set data length (7 or 8 bit)
RD: Get data length
7: 7 bit
8: 8 bit
Other values reserved
Parity [16..17] Parity setting
WR: Set parity
RD: Get parity setting
0: None
1: Odd
2: Even
Stop_Bit [18..19] Stop bit
WR: Set stop bit
RD: Get stop bit setting
0: 1
1: 1.5
2: 2
--- [20..23] Reserved
Buffer_Size_Inq [24..31] Buffer Size (RD only)
This field indicates the maximum size of
receive/transmit data buffer
If this field is 1, Buffer_Status_Control
and SIO_Data_Reg. Char 1-3 should be
ignored.
Table 29: Serial input/output control and status register (SIO CSR)