SAA-XC866L-1FRA AB Infineon Technologies, SAA-XC866L-1FRA AB Datasheet - Page 72

• Manufacturer Part Number: SAA-XC866L-1FRA AB
• Description: IC MCU 8BIT 4KB FLASH 38TSSOP
• Manufacturer: Infineon Technologies
• Series: XC8xxr

Specifications of SAA-XC866L-1FRA AB

• Core Processor: XC800
• Core Size: 8-Bit
• Speed: 86MHz
• Connectivity: LIN, SSI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 27
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 140°C
• Package / Case: 38-TSSOP
• Data Bus Width: 8 bit
• Data Ram Size: 750 B
• Interface Type: UART, SSC
• Maximum Clock Frequency: 26.67 MHz
• Number Of Programmable I/os: 27
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

3.11
The Universal Asynchronous Receiver/Transmitter (UART) provides a full-duplex
asynchronous receiver/transmitter, i.e., it can transmit and receive simultaneously. It is
also receive-buffered, i.e., it can commence reception of a second byte before a
previously received byte has been read from the receive register. However, if the first
byte still has not been read by the time reception of the second byte is complete, one of
the bytes will be lost.
Features:
• Full-duplex asynchronous modes
• Receive buffered
• Multiprocessor communication
• Interrupt generation on the completion of a data transmission or reception
The UART can operate in four asynchronous modes as shown in
transmitted on TXD and received on RXD.
Table 25
Operating Mode
Mode 1: 8-bit shift UART
Mode 2: 9-bit shift UART
Mode 3: 9-bit shift UART
There are several ways to generate the baud rate clock for the serial port, depending on
the mode in which it is operating. In mode 0, the baud rate for the transfer is fixed at
f
and can be configured to either f
either the underflow rate on the dedicated baud-rate generator, or by the overflow rate
on Timer 1.
Data Sheet
PCLK
Mode 0: 8-bit shift register
– 8-bit or 9-bit data frames, LSB first
– fixed or variable baud rate
/2. In mode 2, the baud rate is generated internally based on the UART input clock
Universal Asynchronous Receiver/Transmitter
UART Modes
PCLK
/32 or f
f
Variable
f
Variable
Baud Rate
PCLK
PCLK
69
PCLK
/2
/32 or f
/64. The variable baud rate is set by
PCLK
/64
Functional Description
Table
SAA-XC866
V1.5, 2010-09
25. Data is