Rainbow Electronics AT89C5122 - Manual (Page 77)

77
AT8xC5122/23
4202E–SCR–06/06
Figure 44. Character Reception Diagram
SCIB Reset The SCICR register contains a reset bit. If set, this bit generates a reset of the SCIB and
its registers. Table 43 defines the SCIB registers that are reset and their reset values.
Table 43. Reset Values for SCI Registers
SCIBUF
Received
Character
Shift Register
I/O pin
SCTBE SCTC
SCISR register
SCRC
SCTBI SCTI
SCIIR register
SCRI
ESCTBI
ESCTI
SCIER Re
g
is
te
r
ESCRI
SCPE
Register Name SCIB Reset Value (Binary)
SCICR 0000 0000
SCCON 0X00 0000
SCISR 1000 0000
SCIIR 0X00 0000
SCIER 0X00 0000
SCSR X000 1000
SCIBUF 0000 0000
SCETU1, SCETU0 XXXX X001, 0111 0100 (372)
SCGT1, SCGT0 0000 0000, 0000 1100 (12)
SCWT3, SCWT2, SCWT1, SCWT0 0000 0000, 0000 0000, 0010 0101, 1000 0000 (9600)
SCICLK 0X10 1111
Parity error
SCPI
Parity error