C8051F526-IMR Silicon Labs, C8051F526-IMR Datasheet - Page 167

• Manufacturer Part Number: C8051F526-IMR
• Description: 8-bit Microcontrollers - MCU 2KB 12ADC 125C LIN 10Pin MCU
• Manufacturer: Silicon Labs

Specifications of C8051F526-IMR

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 2 KB
• Data Ram Size: 256 B
• On-chip Adc: Yes
• Package / Case: DFN-10
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 6
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 6
• Number Of Timers: 3
• On-chip Dac: No
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 1500
• Supply Voltage - Max: 2.7 V, 5.25 V
• Supply Voltage - Min: 2 V, 2.7 V

The following code programs the interface in Master mode, using the Enhanced Checksum and enables
the interface to operate at 19200 bits/sec using a 24 MHz system clock.
Table 17.2 includes the configuration values required for the typical system clocks and baud rates:
LINDATA = 0x0C;// Reset any error and the interrupt
SYSCLK
22.1184
11.0592
(MHz)
LIN0CF
LIN0CF
LINADDR
// Initialize the register (prescaler, multiplier and bit 8 of divider)
LINDATA
LINADDR
LINDATA
LINADDR
LINDATA
LINADDR
12.25
24.5
25
24
16
12
8
|= 0x80;// Initialize the checksum as Enhanced
0
0
0
0
0
0
0
0
0
|= 0x40;// Set the node as a Master
= 0x0D;// Point to the LIN0MUL register
= ( 0x01 << 6 ) + ( 0x00 << 1 ) + ( ( 0x13F & 0x0100 ) >> 8 );
= 0x0C;// Point to the LIN0DIV register
= (unsigned char)_0x13F;// Initialize LIN0DIV
= 0x0B;// Point to the LIN0SIZE register
= 0x08;// Point to LIN0CTRL register
= 0x80;// Activate the interface
20 K
1
1
1
1
1
0
0
0
0
Table 17.2. Manual Baud Rate Parameters Examples
312
306
300
276
200
306
300
276
200
0
0
0
0
0
0
0
0
0
19.2 K
1
1
1
1
1
0
0
0
0
325
319
312
288
208
319
312
288
208
Rev. 1.4
Baud (bits / sec)
1
1
1
1
1
1
1
1
1
9.6 K
1
1
1
1
1
0
0
0
0
325
319
312
288
208
319
312
288
208
3
3
3
3
3
3
3
3
3
C8051F52x/F53x
4.8 K
1
1
1
0
0
0
1
1
0
325
319
312
288
208
319
312
288
208
19
19
19
19
19
19
19
19
19
1 K
1
1
1
1
0
0
0
0
1
312
306
300
276
200
306
300
276
200
167