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參數(shù)資料
| 型號(hào)： | OPTA01 |
| 英文描述： | Programmable Bar Code Decode ICs |
| 中文描述： | 可編程條碼解碼芯片 |
| 文件頁數(shù)： | 10/15頁 |
| 文件大小： | 153K |
| 代理商： | OPTA01 |
4-56
Parallel Mode Handshake Timing
Handshake and Data Lines
Figure 1. Host Commands Received by Decode IC (Reader).
Handshake Timing
t
CR
=
Falling edge of command ready to falling edge of command read. Max. = 30
μ
s for the first byte
of transmission from host.
t
CB
=
Falling edge of command read to command valid. Min. = 0
μ
s
t
CS
=
Command valid set up to rising edge of command ready. Min. = 0
μ
s
t
CA
=
Rising edge of command ready to rising edge of command read. Max. = 8
μ
s
t
CC
=
Rising edge of command read to falling edge of command ready. Min. = 0
μ
s
Handshake and Data Lines
Figure 2. Decoder IC Data Sent to Host.
Handshake Timing
t
DO
= Falling edge of data ready to data output to bus. Min. = 6
μ
s
Note: The maximum can be infinite if there is no data to be transmitted. RTS can be used to
determine when there is data. If the scanner is active or escape sequence commands
are being processed, (t
DO
= t
DF
) can extend by an indefinite amount.
t
DF
= Data output to bus to falling edge of data write. Max. = 6
μ
s
t
DA
= Falling edge of data write to rising edge of data ready. Min. = 0
μ
s
t
DW
= Rising edge of data ready to rising edge of data write. Max. = 8
μ
s
t
DH
= Data hold after rising edge of data write. Max. = 4
μ
s
t
DD
= Rising edge of data write to falling edge of data ready. Min. = 0
μ
s
Typical Max. = 74
μ
s
CDY
CRD
PP0-PP7
t
CA
t
CS
t
CB
t
CR
t
CC
RTS
DDY
PP0-PP7
t
DD
t
DF
t
DO
DWR
t
DA
t
DW
t
DH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPTA2 | 制造商:Eaton Corporation 功能描述:9000X Series I/O Card (slot B), 2 RO |
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| OPT-A4-AR-2 | 制造商:ASSEMTECH 功能描述:SENSOR LEVEL 3/8 BSP PNP 制造商:ASSEMTECH 功能描述:SENSOR, LEVEL, 3/8 BSP, PNP, NO 制造商:ASSEMTECH 功能描述:SENSOR, LEVEL, 3/8 BSP, PNP, NO; Output Current:100mA; Sensor Output1:PNP; SVHC:No SVHC (19-Dec-2012) ;RoHS Compliant: Yes |
| OPT-A4-AR-3 | 制造商:ASSEMTECH 功能描述:SENSOR LEVEL 3/8 BSP NPN 制造商:ASSEMTECH 功能描述:SENSOR, LEVEL, 3/8 BSP, NPN, NC 制造商:ASSEMTECH 功能描述:SENSOR, LEVEL, 3/8 BSP, NPN, NC; Output Current:100mA; Sensor Output1:NPN; SVHC:No SVHC (19-Dec-2012) ;RoHS Compliant: Yes |
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