SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 253

• Manufacturer Part Number: SAF-C161U-LF V1.3
• Description: IC MCU ISDN 16BIT TTL TQFP-100
• Manufacturer: Infineon Technologies
• Series: C16xxr

Specifications of SAF-C161U-LF V1.3

• Core Processor: C166
• Core Size: 16-Bit
• Speed: 36MHz
• Connectivity: EBI/EMI, SPI, UART/USART, USB
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Type: ROMless
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: SAFC161ULFV1.3X; SAFC161ULFV13XP; SP000007502

12
Asynchronous/Synchronous Serial Interface (ASC) provides serial communication
between the C161U and other microcontrollers, microprocessors or external peripherals.
The ASC supports a certain protocol to transfer data via a serial interconnection.
12.1
ASC supports full-duplex asynchronous communication up to 2.25 MBaud and half-
duplex synchronous communication up to 4.5 MBaud (@ 36 MHz CPU clock which is
equal to the ASC module clock). In synchronous mode, data are transmitted or received
synchronous to a shift clock which is generated by the microcontroller. In asynchronous
mode, 8- or 9-bit data transfer, parity generation, and the number of stop bits can be
selected.
12.1.1
• Full duplex asynchronous operating modes
• Autobaud detection unit for asynchronous operating modes
• Recently introduced fractional divider
Data Sheet
– 8- or 9-bit data frames, LSB first
– Parity bit generation/checking
– One or two stop bits
– Baudrate from 2.25 MBaud to 0.5364 Baud (@ 36 MHz module clock = CPU clock)
– Multiprocessor mode for automatic address/data byte detection
– Loop-back capability
– Support for IrDA data transmission/reception up to max. 115.2 kBaud
– Detection of standard baudrates
– Detection of non-standard baudrates
– Detection of asynchronous modes
– Automatic initialization of control bits and baudrate generator after detection
– Detection of a serial two-byte ASCII character frame
– The fractional divider drastically improves the accuracy of the adjustment for
– Standard Baud Rates generation with very small deviation (230.4 kBaud < 0.01%,
1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 Baud
7-bit, even parity; 7-bit, odd parity;
8-bit, even parity; 8-bit, odd parity; 8-bit, no parity
baudrates
460.8 kBaud < 0.15 %, 691.2 kBaud < 0.04 %, 921.6 kBaud < 0.15 % ) @ 36 MHz
Asynchronous/Synchr. Serial Interface
Functional Description
Features
253
Asynchronous/Synchr. Serial Interface
2001-04-19
C161U