Rainbow-electronics AT89C5122 Manuel d'utilisateur télécharger pdf (Page 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

Characte

Shift Register

I/O pin

SCTBE

SCTC

SCISR register

SCRC

SCTBI

SCTI

SCIIR register

SCRI

ESCTBI

ESCTI

SCIER Register

ESCRI

SCPE

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

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 212 213

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Rainbow-electronics AT89C5122 Manuel d'utilisateur Page 77