st20-gp6 STMicroelectronics, st20-gp6 Datasheet - Page 3

• Manufacturer Part Number: st20-gp6
• Description: Gps Processor
• Manufacturer: STMicroelectronics

10 Programmable memory interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Low power controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Real time clock and watchdog timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 System services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Diagnostic controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 UART interface (ASC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 Parallel input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 Configuration register addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1
10.2
10.3
10.4
10.5
10.6
11.1
11.2
12.1
12.2
12.3
12.4
13.1
13.2
13.3
14.1
14.2
14.3
14.4
14.5
14.6
15.1
15.2
15.3
15.4
15.5
16.1
EMI signal descriptions ......................................................................................................................... 58
External accesses ................................................................................................................................. 59
MemWait ............................................................................................................................................... 60
EMI configuration registers ................................................................................................................... 62
Boot source ........................................................................................................................................... 65
Default configuration ............................................................................................................................. 65
Low power control ................................................................................................................................. 66
Low power configuration registers ........................................................................................................ 67
Power supplies ..................................................................................................................................... 70
Real time clock ..................................................................................................................................... 70
Watchdog timer ..................................................................................................................................... 70
RTC/WDT configuration registers ......................................................................................................... 71
Reset, initialization and debug .............................................................................................................. 73
Bootstrap .............................................................................................................................................. 73
Clocks ................................................................................................................................................... 73
Diagnostic hardware ............................................................................................................................. 75
Access features .................................................................................................................................... 76
Software debugging features ................................................................................................................ 77
Controlling the diagnostic controller ...................................................................................................... 79
Peeking and poking the host from the target ........................................................................................ 80
Abortable instructions ........................................................................................................................... 80
Functionality .......................................................................................................................................... 82
Timeout mechanism ............................................................................................................................. 85
Baud rate generation ............................................................................................................................ 85
Interrupt control .................................................................................................................................... 86
ASC configuration registers .................................................................................................................. 88
PIO Ports0-1 ......................................................................................................................................... 94
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