TMS320F28030_16 Datasheet, PDF (127/160 Pages) Texas Instruments – Piccolo Microcontrollers

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TMS320F28030, TMS320F28031, TMS320F28032
TMS320F28033, TMS320F28034, TMS320F28035
SPRS584K – APRIL 2009 – REVISED JUNE 2016
Table 6-56. HRCAP Registers
NAME
HCCTL
HCIFR
HCICLR
HCIFRC
HCCOUNTER
HCCAPCNTRISE0
HCCAPCNTFALL0
HCCAPCNTRISE1
HCCAPCNTFALL1
HRCAP1
0x6AC0
0x6AC1
0x6AC2
0x6AC3
0x6AC4
0x6AD0
0x6AD2
0x6AD8
0x6ADA
(1) Registers that are EALLOW-protected.
HRCAP2
0x6AE0
0x6AE1
0x6AE2
0x6AE3
0x6AE4
0x6AF0
0x6AF2
0x6AF8
0x6AFA
SIZE (x16)
1
1
1
1
1
1
1
1
1
DESCRIPTION
HRCAP Control Register⁽¹⁾
HRCAP Interrupt Flag Register
HRCAP Interrupt Clear Register
HRCAP Interrupt Force Register
HRCAP 16-bit Counter Register
HRCAP Capture Counter on Rising Edge 0 Register
HRCAP Capture Counter on Falling Edge 0 Register
HRCAP Capture Counter on Rising Edge 1 Register
HRCAP Capture Counter on Falling Edge 1 Register
For more information on the HRCAP, see the TMS320x2803x Piccolo High Resolution Capture (HRCAP)
Reference Guide.
6.9.12.1 HRCAP Electrical Data/Timing
Table 6-57. High-Resolution Capture (HRCAP) Timing Requirements
t_c(HCCAPCLK)
t_w(HRCAP)
Cycle time, HRCAP capture clock
Pulse width, HRCAP capture
HRCAP step size⁽²⁾
MIN
8.333
7t_c(HCCAPCLK) ⁽¹⁾
NOM
300
MAX
10.204
UNIT
ns
ns
ps
(1) The listed minimum pulse width does not take into account the limitation that all relevant HCCAP registers must be read and RISE/FALL
event flags cleared within the pulse width to ensure valid capture data.
(2) HRCAP step size will increase with low voltage and high temperature and decrease with high voltage and low temperature. Applications
that use the HRCAP in high-resolution mode should use the HRCAP calibration functions to dynamically calibrate for varying operating
conditions.
Copyright © 2009–2016, Texas Instruments Incorporated
Detailed Description 127
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