TOOLSTICK540DC Silicon Laboratories Inc, TOOLSTICK540DC Datasheet - Page 212

• Manufacturer Part Number: TOOLSTICK540DC
• Description: DAUGHTER CARD TOOLSTICK F540
• Manufacturer: Silicon Laboratories Inc
• Series: ToolStickr
• Type: MCUr

Specifications of TOOLSTICK540DC

• Contents: Daughter Card
• Processor To Be Evaluated: C8051F54x
• Processor Series: C8051F54x
• Interface Type: USB
• Operating Supply Voltage: 2.7 V to 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F54x
• For Use With: 336-1345 - TOOLSTICK BASE ADAPTER336-1182 - ADAPTER USB DEBUG FOR C8051FXXX
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1717

C8051F54x
SFR Definition 21.3. SBUF0: Serial (UART0) Port Data Buffer
SFR Address = 0x99; SFR Page = 0x00
SFR Definition 21.4. SBCON0: UART0 Baud Rate Generator Control
SFR Address = 0xAB; SFR Page = 0x0F
212
Name
Reset
Name Reserved
Reset
7:0 SBUF0[7:0] Serial Data Buffer Bits 7–0 (MSB–LSB).
5:2
1:0 SB0PS[1:0] Baud Rate Prescaler Select.
Bit
Bit
Type
Type
7
6
Bit
Bit
Reserved
Reserved
SB0RUN
Name
Name
R/W
7
0
7
0
This SFR accesses two registers; a transmit shift register and a receive latch register.
When data is written to SBUF0, it goes to the transmit shift register and is held for
serial transmission. Writing a byte to SBUF0 initiates the transmission. A read of
SBUF0 returns the contents of the receive latch.
Read = 0b; Must Write 0b;
Baud Rate Generator Enable.
0: Baud Rate Generator disabled. UART0 will not function.
1: Baud Rate Generator enabled.
Read = 0000b; Must Write = 0000b;
00: Prescaler = 12.
01: Prescaler = 4.
10: Prescaler = 48.
11: Prescaler = 1.
SB0RUN
R/W
6
0
6
0
Reserved
R/W
5
0
5
0
Reserved
R/W
Rev. 1.1
4
0
4
0
SBUF0[7:0]
R/W
Function
Function
Reserved
R/W
3
0
3
0
Reserved
R/W
2
0
2
0
1
0
1
0
SB0PS[1:0]
R/W
0
0
0
0