DS26514GN+ Maxim Integrated Products, DS26514GN+ Datasheet - Page 76
DS26514GN+
Manufacturer Part Number
DS26514GN+
Description
IC TXRX T1/E1/J1 4PORT 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.DS26514GN.pdf
(305 pages)
Specifications of DS26514GN+
Number Of Drivers/receivers
4/4
Protocol
Ethernet
Voltage - Supply
3.14 V ~ 3.47 V
Mounting Type
Surface Mount
Package / Case
256-CSBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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9.10.1.4
The HDLC status registers in the DS26514 allow for flexible software interface to meet the user’s preferences.
When receiving HDLC messages, the host can choose to be interrupt driven, to poll to desired status registers, or a
combination of polling and interrupt processes can be used. An example routine for using the DS26514 HDLC
receiver is given in
Figure 9-17. HDLC Message Receive Example
Rev: 101608
Receive HDLC-64 Example
Message Buffer
Message Buffer
Start New
Start New
Figure
9-17.
Rx HDLC FIFO (RHF)
Take appropriate action
Packet Status (PS2..0)
Read N Bytes From
N = RHPBA[5..0]
Read RRTS5 for
NO
(RHC, RHBSE, RHFC)
Configure Receive
Enable Interrupts
Message Buffer
Message Buffer
RPE and RHWM
HDLC Controller
HDLC Controller
Reset Receive
(MS = RHPBA[7])
Read Register
Start New
Start New
Interrupt?
MS = 1?
(RHC.6)
RHPBA
YES
Rx HDLC FIFO (RHF)
Read N Bytes From
N = RHPBA[5..0]
YES
NO
Work Another Process.
No Action Required
DS26514 4-Port T1/E1/J1 Transceiver
76 of 305
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