Table 246. SBUF Register
SBUF (1.AAh) – SIO Data Buffer Register
7
6
5
4
3
2
1
0
SIOD7
SIOD6
SIOD5
SIOD4
SIOD3
SIOD2
SIOD1
SIOD0
Bit
Bit
Number
Mnemonic Description
7-0
SIOD7:0 8-Bit data Buffer.
Reset Value = XXXX XXXXb
Table 247. SBRG0 Register
SBRG0 (0.92h) – SIO Baud Rate Generator Register 0
7
6
5
4
3
2
1
0
CDIV7
CDIV6
CDIV5
CDIV4
CDIV3
CDIV2
CDIV1
CDIV0
Bit
Bit
Number
Mnemonic Description
7-0
CDIV7:0 Baud Rate Generator 8-bit C divider.
Reset Value = 0000 0000b
Table 248. SBRG1 Register
SBRG1 (0.93h) – SIO Baud Rate Generator Register 1
7
6
5
4
3
2
1
0
ADIV7
ADIV6
ADIV5
ADIV4
ADIV3
ADIV2
ADIV1
ADIV0
Bit
Bit
Number
Mnemonic Description
7-0
ADIV7:0 Baud Rate Generator 8-bit A divider.
Reset Value = 0000 0000b
Table 249. SBRG2 Register
SBRG2 (0.94h) – SIO Baud Rate Generator Register 2
7
6
5
4
3
2
1
0
BDIV7
BDIV6
BDIV5
BDIV4
BDIV3
BDIV2
BDIV1
BDIV0
Bit
Bit
Number
Mnemonic Description
7-0
BDIV7:0 Baud Rate Generator 8-bit B divider.
Reset Value = 0000 0000b
222
AT85C51SND3Bx
7632A–MP3–03/06
ATMEL [ ATMEL ]
