ds26518 Maxim Integrated Products, Inc., ds26518 Datasheet - Page 78

• Manufacturer Part Number: ds26518
• Description: 8-port T1/e1/j1 Transceiver
• Manufacturer: Maxim Integrated Products, Inc.

Figure 9-18. HDLC Message Transmit Example
Work Another Process
Loop N
No Action Required
A
(THC1,THC2,THBSE,THFC)
Push Message Byte
Configure Transmit
into Tx HDLC FIFO
Verify TLWM Clear
HDLC Controller
HDLC Controller
Reset Transmit
N = TFBA[6..0]
Enable TLWM
Interrupt and
Last Byte of
Read TFBA
Message?
Interrupt?
(THC.5)
TLWM
(THF)
NO
YES
Disable TMEND Interrupt
Prepare New
Message
NO
78 of 286
YES
A
NO
Disable TMEND Interrupt
Enable TMEND
Resend Message
Push Last Byte
into Tx FIFO
Read TUDR
Set TEOM
TUDR = 1
Interrupt?
Status Bit
(THC1.2)
Interrupt
TMEND
DS26518 8-Port T1/E1/J1 Transceiver
YES
YES
NO
A