參數(shù)資料
型號： 7643
英文描述： IrDA. protocol handler plus endec for DCE Apps, -40C to +85C, 18-SOIC 300mil, TUBE
中文描述： 7643Group數(shù)據(jù)表數(shù)據(jù)表1369K/JUL.30.03
文件頁數(shù)： 43/120頁
文件大小： 1369K
代理商： 7643
Rev.1.00 Jul 30, 2003 page 43 of 119
7643 Group
USB Reception
Endpoint 0 to Endpoint 2 have OUT (receive) FIFOs individually.
Each endpoint’s FIFO is configured in following way:
Endpoint 0: 16-byte
Endpoint 1: 128-byte
Endpoint 2: Mode 0: 32-byte
Mode 1: 128-byte
When Endpoint 2 is used for data receive, the OUT FIFO size can
be selected. Endpoint 2 have 2 modes programmable IN-FIFO.
Each mode can be selected by the USB endpoint FIFO mode se-
lection register (address 005F
16
).
Data transmitted from the host-PC is stored in Endpoint x FIFO
(0060
16
to 0062
16
). Every time the data is stored in the FIFO, the
internal OUT FIFO write pointer is increased by 1. When one com-
plete data packet is stored, the OUT_PKT_RDY flag is set to “1”
and the number of received data packets is stored in USB End-
point x OUT write count register. When the AUTO_CLR bit is “1”
and the received data is read out from the OUT FIFO, the
OUT_PKT_RDY flag is cleared to “0”. When the AUTO_CLR bit is
“1”, the OUT_PKT_RDY flag will not be cleared automatically by
the FIFO read; it must be cleared by software. (The AUTO-CLR bit
function is not applicable in Endpoint 0.)
When MAXP size
≤
(a half of OUT FIFO size), the OUT_FIFO can
receive 2 packets (double buffer). At this time, the OUT_ FIFO sta-
tus can be checked by the OUT_PKT_RDY flag. When the FIFO
holds two packets and one packet is read from the FIFO, the
OUT_PKT_RDY flag is not cleared even if it is set to “0”. (The flag
returns from “0” to “1” in one
φ
cycle after the read-out). During
double buffer mode, the USB Endpoint x OUT write count register
holds the number of previously received packets. This count regis-
ter is updated after reading out one of packets in the OUT FIFO
and clearing the OUT_PKT_RDY flag to “0”.
TOGGLE Initialization
In order to initialize the data toggle sequence bit of the endpoint,
in other words, resetting the next data packet to DATA0; set the
TOGGLE_INT bit to “1” and then clear back to “0”.
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PDF描述
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765-11E 8 BIT INPUT/OUTPUT EXPANDER, I2C INTERFACE, -40C to +125C, 20-QFN, TUBE
765-11R 8-bit I/O Expander with I2C Interface., -40C to +125C, 18-SOIC 300mil, TUBE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
764-3"x36yd-Red 功能描述:膠帶 764 RED 3X36 YD BULK RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
764-3"x36yd-White 功能描述:膠帶 WHITE 3X36YD BULK RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
764-3"x36yd-Yellow 功能描述:膠帶 764 YELLOW 3X36 YD BULK RoHS:否 制造商:3M Electronic Specialty 產(chǎn)品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
7643_06 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
76430 制造商:Brady Corporation 功能描述:TAPE, BARRICADE, BLACK/PHOSPHORESCENT, 2INX5YD; Tape Type:Safety, Hazard Warning; Tape Backing Material:Polyester Film; Tape Width - Metric:50.8mm; Tape Width - Imperial:2"; Tape Length - Metric:4.572m; Tape Length - Imperial:5yard ;RoHS Compliant: NA
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