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TDMA StarTAC
TM
P8190:
DSP(U1900)
A
36
Description
The following list is a description of the DSP(U1900):
•
ROM Mask Device(48K)
•
Patch RAM space(16K)
•
Fixed point MAC(multiply accumulator)
•
8-bit parallel interface
•
8-bit control I/O interface
•
Dual serial I/O ports
•
Two external interrupts
•
Flexible power management including Sleep mode, Sleep with slow internal
clock, and stop
•
Three modes of operation
1. Actively running
2. Light sleep - Clocks running, but lower power consumption
3. Deep sleep - All clocks off, extremely low power consumption
•
Digital Traffic Channel
1. Acquiring and maintaining synchronization with the Digital Channel
2. AFC, AGC, AOC control loops
3. Vocoders (ACELP and VCELP)
4. Channel equalization
5. Channel decoding
6. Channel encoding
7. Audio functions
8. MAHO measurements
BLOCK DIAGRAM NOT NECESSARY
REFER TO PAGE B37
•
Digital Control channel
1. Essentially DTC minus audio and vocoders
2. ROCM instead of MAHO
3. Modem goes into deep sleep for long periods
•
Analog Control Channel
1. No RX functions - modem in deep sleep
2. Manchester Encoder
3. Transmitter control
•
Analog voice channel
1. Audio processing
2. SAT detection/Transponding
Summary of Contents for Timeport P8190
Page 1: ...DIGITAL WIRELESS TELEPHONE Model P8190 TDMA 800MHz Analog 800MHz Service Manual Level III ...
Page 3: ......
Page 28: ... 2000 Motorola Inc TDMA Timeport P8190 Cellular Overview 16 ...
Page 36: ...24 TDMA Timeport P8190 Accessories 2000 Motorola Inc ...
Page 44: ...Motorola Confidential Proprietary TDMA Timeport P8190 TDMA Test Mode NAM Programming 32 ...
Page 66: ...Motorola Confidential Proprietary TDMA Timeport P8190 Test Procedures 54 ...
Page 76: ...64 TDMA Timeport P8190 Disassembly Speaker Vibrator Removal Motorola Confidential Proprietary ...
Page 88: ...76 TDMA Timeport P8190 Parts List Motorola Confidential Proprietary ...