Texas Instruments C28 Series Student Guide

Compare Units
Compare Units
Compare Units
Compare Units
(EVA)
(EVA)
PWM Circuits
PWM Circuits
PWM Circuits
PWM Circuits
PWM Circuits
PWM Circuits
Output Logic
Output Logic
Output Logic
Output Logic
Output Logic
Output Logic
GP Timer 1 Compare
GP Timer 1 Compare
GP Timer 1
GP Timer 1
GP Timer 2 Compare
GP Timer 2 Compare
GP Timer 2
GP Timer 2
Compare Unit 1
Compare Unit 1
Compare Unit 2
Compare Unit 2
Compare Unit 3
Compare Unit 3
Capture Units
Capture Units
MUX
MUX
QEP
QEP
Circuit
Circuit
Output Logic
Output Logic
Output Logic
Output Logic
EV Control Registers / Logic
EV Control Registers / Logic
Reset
Reset
PIE
PIE
TCLKINA / TDIRA
TCLKINA / TDIRA
/
/
2
2
ADC Start
ADC Start
Data Bus
Data Bus
•
•
CLK
CLK
DIR
DIR
•
•
•
•
T1PWM_T1CMP
T1PWM_T1CMP
T2PWM_T2CMP
T2PWM_T2CMP
PWM1
PWM1
PWM2
PWM2
PWM3
PWM3
PWM4
PWM4
PWM5
PWM5
PWM6
PWM6
CAP1/QEP1
CAP1/QEP1
CAP2/QEP2
CAP2/QEP2
CAP3/QEPI1
CAP3/QEPI1
•
•
Each event manager (EVA and EVB) has three compare units. Each compare unit has two
associated PWM outputs. They have capabilities beyond the GP timer compares, and feature
programmable hardware deadband. The time base for the compare units is provided by
GP timer 1 for EVA, and GP timer 3 for EVB.
Compare Units Block Diagram
Compare Units Block Diagram
(EVA)
(EVA)
GP Timer 1
GP Timer 1
Counter
Counter
ACTRA . 11
ACTRA . 11
-
-
0
0
T1CNT . 15
T1CNT . 15
-
-
0
0
Compare
Compare
Logic
Logic
Output
Output
Logic
Logic
FCOMPOE
FCOMPOE
COMCONA . 9
COMCONA . 9
Dead Band
Dead Band
Units
Units
Shadowed
Shadowed
Compare
Compare
Action Control
Action Control
Register
Register
Shadowed
Shadowed
CMPRx
CMPRx
. 15
. 15
-
-
0
0
PWMy
PWMy
, y+1
, y+1
Compare
Compare
Register
Register
DBTCONA . 11
DBTCONA . 11
-
-
2
2
Note: x = 1, 2, 3; y = 1, 3, 5
Note: x = 1, 2, 3; y = 1, 3, 5
7 - 18 C28x - Event Manager

Texas Instruments C28 Series Specifications

General

Brand	Texas Instruments
Model	C28 Series
Category	Computer Hardware
Language	English