BASEBAND OVERVIEW
Issue 1
Section 6
MCUK001001G8
Revision 0
– 20 –
Technical Guide
6.3.
Subscriber Identity Module (SIM)
The SIM interface is designed to support 3 V and 5 V SIMs.
HERCULES operates from a 2.85 V supply. OMEGA has level translators for 3 V and 5 V SIMs.
6.4.
Time Processing Unit (TPU)
The TPU provides the GSM TDMA timing requirements for the system, external timing signals are provided by an area of
Microcode within OMEGA.
6.5.
CPU Memory
To accommodate the memory requirements of the WAP browser, the telephone uses large memory Flash and SRAM with the
following configuration:
• 32 Mbits Flash memory organised as 2 M * 16
4 Mbits RAM organised as 256k * 16 plus 128k * 16 plus 128k * 16
• The 8 Mbits RAM consists of 2 Mbits HERCULES internal RAM, 2 Mbits external RAM only, and 2 Mbits external RAM on
MCP.
$FFFE:0000
REG_SIM_CMD
SIM control register
Write only
$FFFE:0002
REG_SIM_STAT
SIM status register
Read only
$FFFE:0004
REG_SIM_CONF1
SIM configuration register 1
Read/Write
$FFFE:0006
REG_SIM_CONF2
SIM time delay parameters
Read/Write
$FFFE:0008
REG_SIM_IT
SIM Interrupt status
Read only
$FFFE:000A
REG_SIM_DRX
SIM receive byte register
Read only
$FFFE:000C
REG_SIM_DTX
SIM transmit byte register
Read/Write
$FFFE:000E
REG_SIM_MASKIT
SIM interrupt mask register
Read/Write
TPU Timing output signal assignments of HERCULES
Name
PIN No.
Function
Connection
Configuration
TSPACT 0
133
TXON1
RF
TSPACT 1
135
NC
N/A
TSPACT 2
137
NC
N/A
TSPACT 3
139
VCO_EN
RF
TSPACT 4
145
PA_ON
Acc IC
TSPACT 5
148
PCNnGSM
RF
TSPACT 6
153
DCS_PAON
RF
TSPACT 7:CLKX_SPI
162
GSM_PAON
RF
Asic_conf_reg[9] = 0
TSPACT 8:nMREQ
166
NC
N/A
TSPACT 9:MAS1
167
NC
N/A
TSPACT 10:nWAIT
108
NC
N/A
TSPACT 11:MCLK
101
NC
N/A
$FFFE:1000
REG_TPU_CTRL
Control/Status register
Read/Write
$FFFE:1002
REG_INT_CTRL
Interrupt control register
Write only
$FFFE:1004
REG_INT_STAT
Interrupt status register
Read only
$FFFE:100C
REG_TPU_OFFSET
Offset register
Read only
$FFFE;100E
REG_TPU_SYNCHRO
Synchronous register
Read only
$FFFE:1020
RE_IT_DSPPG
DSP Programmable IT
Write only
Summary of Contents for EB-GD93
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