Delta DVP-ES2 Manual do Utilizador descarregar pdf (Página 241)

100

101

3. Instruction Set

3-125

¾ Table of settings for the high-speed interrupts of the software counters and software

comparators:

Counter C232 C233 C234 C235 C236 C237

DHSCS High-speed

interrupt

I010 I050 I070 I010 I020 I030

High-speed comparator

Set

C232~C242 share 6 software comparators

Counter C238 C239 C240 C241 C242

DHSCS High-speed

interrupt

I040 I050 I060 I070 I080

High-speed comparator

Set

C232~C242 share 6 software comparators

¾ DVP-SS2/SA2/SE does not support the software high speed counter C232.

¾ C253 and C254 is DVP/SE are software high speed counters. The high-speed interrupt

is I030.

¾ Block diagram of software counters and comparators:

Software

Counter 1

Software

counter

Software

counter

Count value

Software

comparator

x 6

Set / reset

6. Explanations on hardware comparators

DHSCS/DHSCR instruction:

¾ There are 2 groups of hardware comparators provided respectively for 2 groups of

hardware counters (A group and B group), and each group shares 4 comparators with

individual Compare Set/Reset function.

¾ When programming DHSCS and DHSCR instructions, the total of Set/Reset

comparisons for both instructions can not be more than 4, otherwise syntax check error

will occur.

¾ Each high-speed counter interrupt occupies an associated hardware comparator,

consequently the interrupt number can not be repeated. Also, I010~I040 can only be

applied for group A comparators and I050~I080 for group B.

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Delta DVP-ES2 Manual do Utilizador Página 241

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