June 15, 2005
6815854H01-A
3-2
Theory of Operation:
Controller Section
Figure 3-2. XTL 1500 Control Head Board Sections
—
Side 2
3.3
Controller Section
The controller consists of a digital logic comprising of an applications processor, the OMAP330 IC,
(U1000) and memory consisting of a 4M x 16 SDRAM (U1300) and a 1M x 16 Flash ROM (U1301).
The applications processor runs on the ARM 9 technology and is capable of processing speeds up to
200 MHz. The Flash ROM contains the programs the OMAP processor executes and is used to store
error logs as well for smooth operation of the radio. The programs allows the both the software in the
control head and firmware in the transceiver to be reprogrammed for future software upgrades or
feature enhancements. The SDRAM is used for scratchpad memory during program execution.
The OMAP processor interacts with all the peripherals in the control head as well as maintaining
constant communications with the transceiver microprocessor using Serial Synchronous Interface
(SSI). Linkage between all the peripherals in the control head is done through the use of Serial
Peripheral Interface (SPI), I2C, Special optimiSed Screen Interface (SoSSi) for LCD Driver, and
General Purpose Input-Output (GPIO). Devices that interfaces with OMAP through these lines
includes the Frequency Pot, A/D converter for volume control, ATMEL ATTiny13 for power control
functions, TPS65012 (U2100) for OMAP Power Management Control and the Solomon SSD LCD
Driver.
Input from the user through the GCAI Accessory Interface, Keypad presses; Volume and Frequency
knobs are received by the OMAP processor and sent back to the transceiver PATRIOT
microprocessor for the processing. The information would be relayed back to the user through the
LCD Display.
The ARM core of the processor requires two clocks for proper operation. A 12 MHz crystal (Y1001) is
provided at pin Y2 and pin W3 of OMAP IC. The processor has the capability of running at higher
clock rates, which are programmable and based on the 12 MHz reference.
S4100
S4101
S4102
S4103
S4104
S4105
S4106
S4107
S4108
S4200
1
3
4
6
SH1000
F8
A8
F1
U1301
Q2102
Q2301
Q2304
Q2305
Q2309
Q2310
Q3200
Q4103
Q4104
Q4100
Q4101
Q4102
Q2306
Q2300
3
2
Q2302
3
2
Q2303
3
2
R4103
R4106
R4110
R1001
R1008
R1036
R1050
R1061
R1067
R1070
R1301
R1302
R1303
R1304
R1305
R1306
R1312
R1313
R2100
R2103
R2104
R2105
R2117
R2118
R2119
R2120
R2121
R2122
R2126
R2135
R2137
R2301
R2303
R2304
R2305
R2307
R2308
R2310
R2311
R2313
R2314
R2318
R2323
R2324
R2325
R3104
R3105
R3106
R3107
R3122
R3205
R3207
R3209
R3211
R3220
R3221
R3223
R4100
R4101
R4200
R4201
R4202
R4203
R4206
R4108
R4109
R2326
R4104
R4105
R1037
R1038
R1062
R1300
R1308
R1309
R1314
R4107
R1000
R1009
R1010
R1012
R1013
R1014
R1016
R1020
R1021
R1045
R1310
R1311
R2107
R2109
R21
10
R2128
R2136
R2138
R2300
R2302
R2306
R2309
R2316
R2322
R3100
R3101
R3109
R3110
R
3111
R31
13
R3222
R4209
R1019
R1044
R1015
R2319
R101
1
R1017
R1018
R1034
R1035
R1063
R3103
R3115
R2320
R2315
R3108
R3200
R3201
R3202
R3112
R3114
R3203
R3204
43
2
Y1001
Y1000
1
D4103
1
D4104
1
D4105
1
D4106
1
D4107
1
D4102
1
D4100
1
D4108
1
D4101
BCLK
DQS_H
DQS_L
SDCLKX
TP_PB3
SDRAM_CS
FLASH_CLK
SDRAM_CLK
TP_SDRAM_ADD_13
TP_12V
AA1
AA21
A21
U1000
U2303
4
5
8
J1
A9
J9
U1300
A1
U1009
5
3 4
U1004
2
3
4
5
U2101
5
3
4
U2102
5
3
4
U2103
5
3
4
U2104
5
3 4
U2305
5
3
4
U2302
U2304
U3103
U3104
U3203
U3100
1
8
9
16
U3202
U3204
U4204
U4201
VR4100
D3200
D3203
D3204
D3207
D3208
VR3201
C1005
C1006
C1007
C1008
C1013
C1014
C1015
C1016
C1021
C1029
C1037
C1300
C1304
C1305
C2301
C3205
C4100
C4101
C1009
C1010
C101
1
C1012
C1017
C1018
C1019
C1020
C1022
C1023
C1025
C1030
C1033
C1036
C1302
C1303
C2106
C2107
C2108
C2109
C2110
C
2111
C2302
C2303
C2304
C2305
C2306
C2307
C2308
C2309
C2311
C2312
C2313
C2314
C2315
C2316
C2317
C2318
C2319
C2320
C2321
C3100
C3105
C3106
C3207
C3208
C3209
C3210
C3211
C3212
C3213
C3214
C4200
C4202
C1301
C1306
C1307
C1000
C1001
C1002
C1003
C1004
C1024
C2310
VOL. A/D
CONVERTER
USB UART
MUX SELECT
LED
INDICATORS
ATTINY13
POWER
CONTROL
CIRCUIT
OMAP IC
2MB FLASH
8MB SDRAM
FREQ. KNOB
BACKLIGHT
CIRCUIT
32KHz
OSCILLATOR
CIRCUIT
Содержание XTL 1500
Страница 1: ......
Страница 5: ...iv June 15 2005 6815854H01 A This page is intentionally left blank ...
Страница 19: ...xviii List of Figures June 15 2005 6815854H01 A This page is intentionally left blank ...
Страница 25: ...June 15 2005 6815854H01 A xxiv CommercialWarranty Notes ...
Страница 35: ...June 15 2005 6815854H01 A xxxiv Model Numbering Charts and Specifications Notes ...
Страница 49: ...June 15 2005 6815854H01 A 2 12 Product Overview Controller Section Notes ...
Страница 161: ...June 15 2005 6815854H01 A 4 36 Troubleshooting Procedures Power Amplifier Procedures Notes ...
Страница 225: ...June 15 2005 6815854H01 A 5 64 Troubleshooting Charts Flowcharts Notes ...
Страница 429: ...8 2 Flex Cable Pin Out Lists Flex Cables June 15 2005 6815854H01 A Notes ...
Страница 441: ...June 15 2005 6815854H01 A Glossary 10 Notes ...
Страница 451: ...Index x June 15 2005 6815854H01 A This page is intentionally left blank ...