Table 93. SADDR Register
SADDR (S:A9h) – Slave Individual Address Register
7
6
5
4
3
2
1
0
SAD7
SAD6
SAD5
SAD4
SAD3
SAD2
SAD1
SAD0
Bit
Bit Number Mnemonic Description
7 - 0 SAD7:0 Slave Individual Address.
Reset Value = 0000 0000b
Table 94. SADEN Register
SADEN (S:B9h) – Slave Individual Address Mask Byte Register
7
6
5
4
3
2
1
0
SAE7
SAE6
SAE5
SAE4
SAE3
SAE2
SAE1
SAE0
Bit
Bit Number Mnemonic Description
7 - 0 SAE7:0 Slave Address Mask Byte.
Reset Value = 0000 0000b
Table 95. BDRCON Register
BDRCON (S:92h) – Baud Rate Generator Control Register
7
-
6
-
5
-
4
3
2
1
0
BRR
TBCK
RBCK
SPD
M0SRC
Bit
Bit Number Mnemonic Description
Reserved
The value read from these bits is indeterminate. Do not set these bits.
7-5
4
-
Baud Rate Run Bit
Set to enable the baud rate generator.
Clear to disable the baud rate generator.
BRR
Transmission Baud Rate Selection Bit
Set to select the baud rate generator as transmission baud rate generator.
Clear to select the Timer 1 as transmission baud rate generator.
3
2
1
0
TBCK
RBCK
SPD
Reception Baud Rate Selection Bit
Set to select the baud rate generator as reception baud rate generator.
Clear to select the Timer 1 as reception baud rate generator.
Baud Rate Speed Bit
Set to select high speed baud rate generation.
Clear to select low speed baud rate generation.
Mode 0 Baud Rate Source Bit
Set to select the variable baud rate generator in Mode 0.
Clear to select fixed baud rate in Mode 0.
M0SRC
118
AT89C5132
4173E–USB–09/07
ATMEL [ ATMEL ]
