ST7FMC2R7T6TR STMicroelectronics, ST7FMC2R7T6TR Datasheet - Page 165

• Manufacturer Part Number: ST7FMC2R7T6TR
• Description: IC MCU 8BIT 32K FLASH 64-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FMC2R7T6TR

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LINSCI, SPI
• Peripherals: LVD, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: 497-8402 - BOARD EVAL COMPLETE INVERTER497-8400 - KIT IGBT PWR MODULE CTRL ST7MC497-6408 - BOARD EVAL BLDC SENSORLESS MOTOR497-4734 - EVAL KIT 3KW POWER DRIVER BOARD497-4733 - EVAL KIT 1KW POWER DRIVER BOARD497-4732 - EVAL KIT 300W POWER DRIVER BOARD497-4731 - EVAL KIT PWR DRIVER CONTROL BRD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

MOTOR CONTROLLER (Cont’d)
10.6.6.13 Encoder Mode (IS[1:0] = 11)
Figure 90
ard digital incremental encoder and associated in-
formation:
Figure 89. Tacho Capture events configured by the TES[1:0] bits
Figure 90. Incremental Encoder output signals and derived information
– Two 90° phased square signals with variable
– Clock derived from incoming signal edges,
– Direction information determined by the rela-
frequency proportional to the speed; they
must be connected to MCIA and MCIB input
pins,
tive phase shift of input signals ( + or -90°).
Capture
Encoder
Tacho
inputs
(EDIR bit)
Direction
shows the signals delivered by a stand-
Encoder
Clock
Tacho
input
MCIA
MCIB
The Incremental Encoder Interface block aims at
extracting these signals. As input logic is both ris-
ing and falling edge sensitive (independently from
TES[1:0] bits setting), resulting clock frequency is
four times the one of the input signals, thus in-
creasing resolution for measurements.
It may be noticed that Direction bit (EDIR bit in
MCRC register) is read only and that it does’nt af-
fect counting direction of clocked timer (cf
). As a result, one cannot extract position informa-
tion from encoder inputs during speed reversal.
Sampling of MCIA to determine direction
ST7MC1xx/ST7MC2xx
TES[1:0]=11
TES[1:0]=01
TES[1:0]=10
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