TC290 Datasheet, PDF (396/476 Pages) Infineon Technologies AG – 32-Bit Single-Chip Micocontroller

TC290 / TC297 / TC298 / TC299 BB-Step
Electrical SpecificationASCLIN SPI Master Timing
3.22
ASCLIN SPI Master Timing
This section defines the timings for the ASCLIN in the TC290 / TC297 / TC298 / TC299, for 5V power supply.
Note: Pad asymmetry is already included in the following timings.
Table 3-45 Master Mode MP+ss/MPRss output pads
Parameter
Symbol
Values
ASCLKO clock period ¹⁾
t₅₀ CC
Deviation from ideal duty cycle t₅₀₀ CC
2)
Min.
20
-3
Typ.
-
-
Max.
-
3
Unit Note / Test Condition
ns
C_L=25pF
ns
0 < C_L < 50pF
MTSR delay from ASCLKO t₅₁ CC
-7
-
shifting edge
6
ns
C_L=25pF
ASLSOn delay from the first t₅₁₀ CC
5
-
ASCLKO edge
35
ns
C_L=25pF; pad used =
LPm
MRST setup to ASCLKO
t₅₂ SR
30
-
-
ns
C_L=25pF
latching edge
MRST hold from ASCLKO
t₅₃ SR
-4.5
-
-
ns
C_L=25pF
latching edge
1) PLL Jitter not included. Should be considered additionally, corresponding to the used baudrate. The duty cycle can be
adjusted using the BITCON.SAMPLEPOINT bitfield with the finest granularity of T_MAX = 1 / f_MAX.
2) Positive deviation lenghtens the high time and shortens the low time of a clock period. Negative deviation does the
opposite.
Table 3-46 Master Mode MP+sm/MPRsm output pads
Parameter
Symbol
Values
Unit Note / Test Condition
Min.
Typ.
Max.
ASCLKO clock period ¹⁾
t₅₀ CC
50
-
Deviation from ideal duty cycle t₅₀₀ CC
-2
-
2)
MTSR delay from ASCLKO t₅₁ CC
-10
-
shifting edge
-
ns
3+0.01 * ns
C_L
10
ns
C_L=50pF
0 < C_L < 200pF
C_L=50pF
ASLSOn delay from the first t₅₁₀ CC
5
-
ASCLKO edge
35
ns
C_L=50pF; pad used =
LPm
MRST setup to ASCLKO
t₅₂ SR
50
-
-
ns
C_L=50pF
latching edge
MRST hold from ASCLKO
t₅₃ SR
-9
-
-
ns
C_L=50pF
latching edge
1) PLL Jitter not included. Should be considered additionally, corresponding to the used baudrate. The duty cycle can be
adjusted using the BITCON.SAMPLEPOINT bitfield with the finest granularity of T_MAX = 1 / f_MAX.
2) Positive deviation lenghtens the high time and shortens the low time of a clock period. Negative deviation does the
opposite.
Data Sheet
3-390
V 1.1 2015-05
TC290/TC297/TC298/TC299 BB-Step Data Sheet downloaded by saravanakumar maniyam (larsen and Toubro limited) at 08 Sep 2015 08:06