SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 125

• 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

The PEC response time is increased by all delays of the instructions in the pipeline that
are executed before starting the data transfer (including N).
• When internal hold conditions between instruction pairs N-2/N-1 or N-1/N occur, the
• When instruction N reads an operand from the internal code memory, or when N is a
• In case instruction N reads the PSW and instruction N-1 has an effect on the condition
The worst case PEC response time during internal code memory program execution
adds to 9 state times (18 TCL).
Any reference to external locations increases the PEC response time due to pipeline
related access priorities. The following conditions have to be considered:
• Instruction fetch from an external location
• Operand read from an external location
• Result write-back to an external location
Depending on where the instructions, source and destination operands are located,
there are a number of combinations. Note, however, that only access conflicts contribute
to the delay.
A few examples illustrate these delays:
• The worst case interrupt response time including external accesses will occur, when
• When instructions N and N+1 are executed out of external memory, but all operands
Once a request for PEC service has been acknowledged by the CPU, the execution of
the next instruction is delayed by 2 state times plus the additional time it might take to
fetch the source operand from internal code memory or external memory and to write the
destination operand over the external bus in an external program environment.
Note: A bus access in this context includes all delays which can occur during an external
Data Sheet
minimum PEC response time may be extended by 1 state time for each of these
conditions.
call, return, trap, or MOV Rn, [Rm+ #data16] instruction, the minimum PEC response
time may additionally be extended by 2 state times during internal code memory
program execution.
flags, the PEC response time may additionally be extended by 2 state times.
instructions N and N+1 are executed out of external memory, instructions N-1 and N
require external operand read accesses and instructions N-3, N-2 and N-1 write back
external operands. In this case the PEC response time is the time to perform 7 word
bus accesses.
for instructions N-3 through N-1 are in internal memory, then the PEC response time
is the time to perform 1 word bus access plus 2 state times.
bus cycle.
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Interrupt and Trap Functions
2001-04-19
C161U