PSB 21393 H V1.3 Infineon Technologies, PSB 21393 H V1.3 Datasheet - Page 88

• Manufacturer Part Number: PSB 21393 H V1.3
• Description: IC CODEC W/TRANSCEIVER MQFP-44
• Manufacturer: Infineon Technologies
• Series: SCOUT™r

Specifications of PSB 21393 H V1.3

• Function: CODEC
• Interface: IOM-2, SCI, UPN
• Number Of Circuits: 1
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 27mA
• Mounting Type: Surface Mount
• Package / Case: 44-BQFP
• Includes: Activation and Deactivation, Channel Handler, DTMF / Tone / Ringing Generator, HDLC Controller, Speakerphone, UPN Transceiver
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Operating Temperature: -
• Other names: PSB21393HV1.3XT; PSB21393HV13XP; SP000007533; SP000007534

Data Sheet
2.3.5.2
Instead of using the integrated layer-1 statemachine it is also possible to implement the
layer-1 statemachine completely in software.
The internal layer-1 statemachine can be disabled by setting the L1SW bit in the
TR_CONF0 register (see chapter 7.1.1) to ’1’.
The transmitter is completely under control of the microcontroller via register TR_CMD
(see chapter 7.1.5).
The status of the receiver is stored in register TR_STA (see chapter 7.1.4) and has to
be evaluated by the microcontroller. This register is updated continuously. If not masked
a RIC interrupt (see chapter 7.1.6) is generated by any change of the register contents.
The interrupt is cleared after a read access to this register.
External Layer-1 Statemachine
78
PSB 21391
PSB 21393
Interfaces
2001-03-07