SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 367

• 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

Note:All configurations regarding register SYSCON (enable CLKOUT, stacksize, etc.)
• disables write access to registers SYSCON2 and SYSCON3 (further write accesses
• clears the reset source detection bits in register WDTCON,
• causes the RSTOUT pin to go HIGH. This signal can be used to indicate the end of
18.1
Although most of the programmable features of the C161U are either selected during the
initialization phase or repeatedly during program execution, there are some features that
must be selected earlier, because they are used for the first access of the program
execution.
These selections are made during reset via the pins of PORT0, which are read at the
end of the internal reset sequence. During reset internal pullup devices are active on the
PORT0 lines, so their input level is high, if the respective pin is left open, or is low, if the
respective pin is connected to an external pulldown device. With the coding of the
selections, as shown below, in many cases the default option, ie. high level, can be used.
The value on the upper byte of PORT0 (P0H) is latched into register RP0H upon reset,
the value on the lower byte (P0L) directly influences the BUSCON0 register (bus mode)
or the internal control logic of the C161U.
Data Sheet
to SYSCON2 and SYSCON3 can be executed only using a special unlock
mechanism),
the initialization routine and the proper operation of the microcontroller to external
hardware.
must be selected before the execution of EINIT.
System Startup Configuration
367
System Reset
2001-04-19
C161U