SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 133

• 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

TFR (FFAC
Note: The trap service routine must clear the respective trap flag, otherwise a new trap
The reset functions (hardware, software, watchdog) may be regarded as a type of trap.
Reset functions have the highest system priority (trap priority III).
Class A traps have the second highest priority (trap priority II), on the 3rd rank are class
B traps, so a class A trap can interrupt a class B trap. If more than one class A trap occur
at a time, they are prioritized internally, with the NMI trap on the highest and the stack
underflow trap on the lowest priority.
All class B traps have the same trap priority (trap priority I). When several class B traps
get active at a time, the corresponding flags in the TFR register are set and the trap
service routine is entered. Since all class B traps have the same vector, the priority of
Data Sheet
Bit
ILLBUS
ILLINA
ILLOPA
PRTFLT
UNDOPC
STKUF
STKOF
NMI
NMI
15
rw
STK
will be requested after exiting the service routine. Setting a trap request flag by
software causes the same effects as if it had been set by hardware.
OF
14
rw
H
STK
/ D6
UF
13
rw
Illegal External Bus Access Flag
Stack Underflow Flag
Stack Overflow Flag
Function
An external access has been attempted with no external bus defined.
Illegal Instruction Access Flag
A branch to an odd address has been attempted.
Illegal Word Operand Access Flag
A word operand access (read or write) to an odd address has been
attempted.
Protection Fault Flag
A protected instruction with an illegal format has been detected.
Undefined Opcode Flag
The currently decoded instruction has no valid C161U opcode.
The current stack pointer value exceeds the content of register STKUN.
The current stack pointer value falls below the content of register
STKOV.
Non Maskable Interrupt Flag
A negative transition (falling edge) has been detected on pin NMI.
H
)
12
-
-
11
-
-
10
-
-
9
-
-
8
-
-
SFR
133
UND
OPC
rw
7
6
-
-
5
-
-
Interrupt and Trap Functions
4
-
-
PRT
FLT
rw
Reset Value: 0000
3
OPA
ILL
rw
2
INA
ILL
rw
2001-04-19
1
C161U
BUS
ILL
rw
0
H