ds26524 Maxim Integrated Products, Inc., ds26524 Datasheet - Page 70

• Manufacturer Part Number: ds26524
• Description: Ds26524 Quad T1/e1/j1 Transceiver
• Manufacturer: Maxim Integrated Products, Inc.

Figure 8-10. 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
Read TFBA
Last Byte of
Message?
Interrupt?
(THC.5)
TLWM
(THF)
NO
YES
Disable TMEND Interrupt
Prepare New
Message
70 of 273
NO
YES
A
NO
Disable TMEND Interrupt
Enable TMEND
Resend Message
Push Last Byte
into Tx FIFO
Read TUDR
TUDR = 1
Set TEOM
Interrupt?
Status Bit
(THC1.2)
Interrupt
TMEND
YES
YES
NO
A