Analog-way Smart Fade - SMF251A Instrukcja Użytkownika Pobierz pdf (Strona 39)

SMART FADE™ Chapter 10 : RS-232 PROGRAMMER'S GUIDE

PAGE 39

10-5. COMMANDS DESCRIPTION (continued)

h STATUS COMMANDS (READ ONLY).

This control family is read only: it cannot be preceded by a value.

• U command returns the UNIT value, used to calculate the computer line and frame frequency.

• l command returns the Computer Line Duration (CLD value).

The following formula allows to calculate the input line frequency in kHz.

UNIT VALUE = Input line frequency in kHz.

CLD VALUE

• t command returns the Computer lines per Frame (CFD value).

The following formula allows to calculate the computer input frame frequency in Hz.

INPUT LINE FREQUENCY (Hz) = Input frame frequency in Hz.

CFD VALUE

• P command returns the Computer status. (RESPONSE : CSTA--).

Bit 5

(32)

Bit 4

(16)

Bit 3

(8)

Bit 2

(4)

Bit 1

(2)

Bit 0

(1)

0 = No sync. detected.

1 = Sync. detected.

0 = H & V sync. detected.

1 = COMP sync. detected.

0 = Non interlaced format.

1 = Interlaced format.

0 = Computer sync are not used as ref. sync.

1 = Computer sync are used as ref. sync.

0 = Computer format out of range (for reference sync.)

1 = Computer format in range (can be used as reference sync.)

0 = Fade & Title are not active.

1 = Fade & Title are active.

• c command is used to know the computer number which status is displayed.

- SMART FADE

™

ALONE APPLICATION.

DECIMAL

VALUE

SELECTION RESPONSE APPLICATION

0 NO COMPUTER CCHAN0

1 COMPUTER 1 CCHAN1 SMF251 ALONE

2 COMPUTER 2 CCHAN2

- SMART FADE

™

+ SMART SWITCH VIDEO

™

APPLICATION.

DECIMAL

VALUE

SELECTION RESPONSE APPLICATION

0 NO COMPUTER CCHAN0

2 EXTEND PC 2 CCHAN2 SMF251

23 COMPUTER 1 CCHAN23 +

24 COMPUTER 2 CCHAN24 SMV415

25 COMPUTER 3 CCHAN25

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 80 81

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