LG T5100, Руководство по обслуживанию, Страница: 19 / 136

2. TECHNICAL BRIEF
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C. External Devices connected to memory interface
D. RF Interface (TPU, TSP block)
Calypso uses this interface to control IOTA(ABB Processor) and Rita(RF Processor) with GSM Time
Base
E. SIM interface
SIM interface scheme is shown in (Figure 12.).
SIM_IO, SIM_CLK, SIM_RST ports are used to communicate DBB via ABB with plugged sim card and
the Charge Pump in ABB enables 1.8V/3V SIM operation
Interface SPEC
Device Name Maker
Write Access
Read Access Time
Time
FLASH 1-1 AM50PDL193CHH66I AMD 70ns(min) 70ns(min)
FLASH 1-2 AM50PDL193CHH66I AMD 70ns(min) 70ns(min)
Pseudo-SRAM AM50PDL193CHH66I AMD 70ns(min) 70ns(min)
DSP SH Mobile V Renesas 80ns(max) 80ns(max)
Melody IC YMU762 Yamaha 50ns 80ns
USB IC USBN9604 N.S 80ns 80ns
LCD HD66784 RENESAS 150ns(max) 150ns(max)
Table 2. External Device Spec. connected to memory interface
TSP (Time Serial Port)
Resource Interconnection Description
TSPDO ABB & RF main Chip Control Data
TSPEN0 ABB ABB Control Data Enable Signal
TSPEN1 RF main Chip RF Control Data Enable Signal
TPU (Time Processing Unit) Parallel Port
TSPACT00 RESET_RF RF main Chip Reset Signal
TSPACT01 PA_ON Power Amp ON signal
Table 3. RF Interface Spec.