MC145572APB Freescale Semiconductor, MC145572APB Datasheet - Page 44

• Manufacturer Part Number: MC145572APB
• Description: IC ISDN INTERFACE TXCVER 44-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Transceiverr

Specifications of MC145572APB

• Protocol: RS232
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Drivers/receivers: -
• Lead Free Status / Rohs Status: Not Compliant

displayed before the command line prompt is written to the terminal. It is advisable to reset the
3.2.11
3.2.11.1 FORMAT.
This command turns off automatic control of the M4 ACT bit at the LT. The M4 messages must be handled
manually via the byte register commands.
3.2.12
3.2.12.1 FORMAT.
This command enables automatic handling of the LT side M4 channel by the MC68HC705C8 MCU. This
is the default operating mode of the EVK board after reset.
3.2.13
3.2.13.1 FORMAT.
This command puts a U-Interface Transceiver into special loop-back and test modes for individual testing.
When an LPU command is invoked, the register set of the corresponding U-Interface Transceiver is always
device = N (selects NT side ÒU-ChipÓ)
The U-Interface connector should have a 135 W terminator connected.
LOF — Disable LT M4 Handler
LON — Enable LT M4 Handler
LPU — U-Interface Transceiver Analog Loop-Backs
MM AA[ dd]
CLR
LON
LOF
NON
NOF
U: U chips, L: LT U chip, N: NT U chip, S or T: T chip, A: all
<
NTLT>
LOF<ENTER>
LON<ENTER>
LPU <n> <ENTER>
= L (selects LT side ÒU-ChipÓ)
>:required option
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
NOTE
R/W memory adr AA
AA = 0 Ð FF, dd = 0 Ð FF
Clear all febe/nebe registers
LT M4 handler on
LT M4 handler off
NT1 enabled
NT1 disabled
MC145572EVK
45