SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 437

• 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

22.5
PEC Pointer Registers
The source and destination pointers for the peripheral event controller are mapped to a
special area within the internal RAM. Pointers that are not occupied by the PEC may
therefore be used like normal RAM. During Power Down mode or any warm reset the
PEC pointers are preserved.
The PEC and its registers are described in chapter “Interrupt and Trap Functions”.
GPR Access in the ESFR Area
The locations 00’F000H...00’F01EH within the ESFR area are reserved and allow to
access the current register bank via short register addressing modes. The GPRs are
mirrored to the ESFR area which allows access to the current register bank even after
switching register spaces (see example below).
MOV
EXTR
MOV
Writing Bytes to SFRs
All special function registers may be accessed wordwise or bytewise (some of them even
bitwise). Reading bytes from word SFRs is a non-critical operation. However, when
writing bytes to word SFRs the complementary byte of the respective SFR is cleared with
the write operation.
Data Sheet
R5, DP3
#1
R5, ODP3
Special Notes
;GPR access via SFR area
;GPR access via ESFR area
437
Register Set
2001-04-19
C161U