AT8xC51SND2C
Table 161. SBUF Register
SBUF (S:99h) – Serial Buffer Register
7
6
5
4
3
2
1
0
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
Bit
Bit
Number
Mnemonic Description
Serial Data Byte
7 - 0
SD7:0
Read the last data received by the serial I/O Port.
Write the data to be transmitted by the serial I/O Port.
Reset value = XXXX XXXXb
Table 162. 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 163. 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
179
4341D–MP3–04/05
ATMEL [ ATMEL ]
