Imi Tech IMB-7017G - TBUF_ST: Current TX Data Buffer(Unit:byte) of the Camera

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AMAZON SERIES Operation Manual

Page 59

Pioneer i n D i g i t al V is io n Technol og y

If ((TBUF_ST == Buffer_Size_Inq) or (TBUF_TDRD ==1)) then TX is COMPLETE else TX is INCOMPLETE

TBUF_ST: Current TX Data buffer(Unit:byte) of the camera

TBUF_CNT: Read : Number of data transmitted by RS232 TX

Buffer_Size_Inq: Defined in Serial_Mode_Reg( Addr. : F2F22000h)

Ex) 20050000h: valid data buffer size = 20 number of data sent : 05

STEP 2. Write number of RS232 TX data to be set for TBUF_CNT at SIO_Data_Register (Addr:

F2F22100h)

STEP 3. Write number of TX data to be transferred to TBUF_CNT of Transmit_Buffer_Status_Control

TBUF_CNT can be configured by unit of byte.

The value of TBUF_CNT must be smaller than the Amazon data written at SIO_Data_Register.

If (write data number > = TBUF_CNT)

{

RS232TX Start

Write Data number larger that TBUF_CNT is discarded.

For example if TBUF_CNT = 5 , write is done by a unit of 4 bytes where 8 bytes shall be written at

SIO_Data_Register but only 5 bytes are transmitted and the 3 bytes remaining shall be discarded.

}

STEP 4. If there is data to be transmitted repeat from Step 1 .

Bit 0 ~ Bit 7: 1

Data Bit 8 ~ Bit 15: 2

Data

Bit 16 ~ Bit 23: 3

Data Bit 24 ~ Bit 31: 4

Data

Bit 0: Msb Bit 31: Lsb

5.5.5. SIO (RS232) TX Control Procedure Method II

STEP 1. Check TX buffer size by reading TBUF_ST of the Transmit_Buffer_Status_Control register

(Addr. : F2F220Ch)