SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 274

• 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

Data Sheet
Figure 82
The IrDA pulse width can be calculated according the formulas given in Table 56.
Table 56
The name PMW in the formulas of Table 56 represents the content of the reload register
PMW (PW_VALUE), taken as unsigned 8-bit integer.
The content of PMW further defines the minimum IrDA pulse width (t
recognized during a receive operation as a valid IrDA pulse. This function is independent
of the selected IrDA pulse width mode (fixed or variable) which is defined by bit
PMW_IRPW. The minimum IrDA pulse width is calculated by a shift right operation of
PMW bit 7-0 by one bit divided by the module clock f
Note: If PMW_IRPW=0 (fixed IrDA pulse width), PW_VALUE must be a value which
Table 57 gives two examples for typical frequencies of the C161U: 36 MHz and 24 MHz..
Table 57
PMW
1 ... 255
f
24 MHz
36 MHz
MOD
assures that t
Fixed IrDA Pulse Generation
Formulas for the IrDA Pulse Width Calculation
IrDA Pulse Width Adaption to 1.627 s
PMW
39
59
PMW_IRPW
0
1
Start Timer
f
MOD
IPW
> t
IPW min
Formulas
8-Bit Timer
.
t
1.625 s
1.639 s
PMW
IPW
t
t
IPW
IPW
=
=
274
16 x Baudrate
PMW
f
Asynchronous/Synchr. Serial Interface
MOD
3
t
IPW
Error
- 0.12 %
+ 0.74 %
MOD
.
IrDA Pulse
t
IPW min
=
IPW min
t
0.79 s
0.81 s
IPW min
(PMW >> 1)
) which is still
f
MOD
2001-04-19
C161U