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DS31256 bảng dữ liệu(PDF) 160 Page - Maxim Integrated Products

tên linh kiện DS31256
Giải thích chi tiết về linh kiện  256-Channel, High-Throughput HDLC Controller
PDF  183 Pages
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nhà sản xuất  MAXIM [Maxim Integrated Products]
Trang chủ  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS31256 bảng dữ liệu(HTML) 160 Page - Maxim Integrated Products

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DS31256 256-Channel, High-Throughput HDLC Controller
160 of 183
Figure 11-10. 8-Bit Write Cycle
Motorola Mode (LIM = 1)
Arbitration Enabled (LARBE = 1)
Bus Transaction Time = 6 LCLK (LRDY = 0110)
An attempted access by the host causes the local bus to request the bus. If bus access has not been granted
(
LBGACK deasserted), the timing shown at the top of the page occurs, with LBR being asserted. Once LBG is
detected, the local bus grabs the bus for 32 to 1,048,576 clocks and then releases it. If the bus has already been
granted (
LBGACK asserted), the timing shown at the bottom of the page applies.
LCLK
LBR
LBG
LBGACK
32 to 1,048,576 LCLKs
LA[19:0]
LD[7:0]
LD[15:8]
LR/
W
LDS
Address Valid
Data Valid
LBHE
Tri-State
Tri-State
Tri-State
Tri-State
Tri-State
Tri-State
LCLK
12
34
56
Note: LA, LD,
LBHE, LDS, and LR/W are tri-stated.



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