AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 118

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

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