MSP430FR5994 Datasheet, PDF (46/166 Pages) Texas Instruments – Mixed-Signal Microcontrollers

MSP430FR5994, MSP430FR59941, MSP430FR5992, MSP430FR5964, MSP430FR5962
SLASE54 – MARCH 2016
www.ti.com
5.11.6 LEA_SC (Low Energy Accelerator for Signal Conditioning)
The LEA_SC is a hardware engine designed for operations that involve vector-based arithmetic and signal
conditioning. Table 5-14 lists the LEA_SC performance characteristics.
Table 5-14. Low Energy Accelerator (LEA_SC) Performance
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
f_LEA
Frequency for specified
performance
MCLK
W_LEA_FFT
LEA-SC subsystem energy
on fast Fourier transform
Complex FFT 128 pt. Q.15 with
random data in LEA-RAM
V_core = 3 V,
MCLK = 16 MHz
350
W_LEA_FIR
LEA-SC subsystem energy
on finite impulse response
Real FIR on random Q.31 data
with 128 taps on 24 points
V_core = 3 V,
MCLK = 16 MHz
2.6
W_LEA_ADD
LEA-SC subsystem energy
on additions
On 32 Q.31 elements with
random value out of LEA-RAM
with linear address increment
V_core = 3 V,
MCLK = 16 MHz
6.6
MAX
16
UNIT
MHz
nJ
µJ
nJ
5.11.7 Timer_A and Timer_B
Timer_A and Timer_B are 16-bit timers and counters with multiple capture/compare registers. Table 5-15
lists the Timer_A characteristics, and Table 5-16 lists the Timer_B characteristics.
Table 5-15. Timer_A
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Internal: SMCLK or ACLK,
f_TA
Timer_A input clock frequency
External: TACLK,
Duty cycle = 50% ±10%
V_CC
MIN
2.2 V, 3.0 V
t_TA,cap Timer_A capture timing
All capture inputs, Minimum pulse duration
required for capture
2.2 V, 3.0 V
20
MAX UNIT
16 MHz
ns
Table 5-16. Timer_B
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
f_TB
Timer_B input clock frequency
TEST CONDITIONS
Internal: SMCLK or ACLK,
External: TBCLK,
Duty cycle = 50% ±10%
V_CC
MIN
2.2 V, 3.0 V
t_TB,cap Timer_B capture timing
All capture inputs, Minimum pulse duration
required for capture
2.2 V, 3.0 V
20
MAX UNIT
16 MHz
ns
46
Specifications
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