Functional Description; Gemini; Introduction - Panasonic G600 Technical Manual
Personal cellular telephone, handheld portable, car mount kit, easy fit car mount kit, dual charger
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Also See for G600:
- Service manual (116 pages) ,
- Service manual (113 pages) ,
- Service manual (108 pages)
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7
GEMINI
7.1
Introduction
Gemini contains the DSP, CPU, GSM timing functions and many peripheral functions. The software for the DSP is
contained in masked ROM.
7.2
Functional Description
Figure 1: GEMINI Block Diagram
7.2.1 Digital Signal Processor
The Digital Signal Processor (DSP) core is compatible with the Texas Instruments TMS350C5xx family of DSPs.
Included in the DSP core is an interface to the CPU by a shared memory interface.
The DSP memory is also located within GEMINI, the ROM code size is determined by the size of the software.
7.2.2 CPU
The CPU is a 32 bit RISC CPU with 16bit instruction set. The CPU is designed to access 32bit memory and
peripherals, a further module within the GEMINI chip allows access to 8 or 16bit memory.
Clock Speed
19.5MHz
13MHz
9.75MHz
6.5MHz
4.875MHz
3.75MHz
For 120nS access FLASH and RAM, a 6.5MHz clock gives 1 wait state access to both devices.
MCUK980101G8
Technical Guide
http://cxema.ru
GSM
TDMA
TIMER
DSP
TPU
CORE
SIM
I/F
Memory access times
Memory Access Time
41nS
67nS
91nS
144nS
194nS
298nS
Section 7
7 - 1
PWM
ARM
I/O
MEM
I/F
Additional Access time per wait state
51nS
77nS
102nS
154nS
204nS
308nS
GEMINI
600-0701
Issue 1
Revision 0
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