ST20-GP1 Ver la hoja de datos (PDF) - STMicroelectronics
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ST20-GP1 Datasheet PDF : 116 Pages
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ST20-GP1
9.4 MemWait .............................................................................................................................................. 56
9.5 EMI configuration registers .................................................................................................................. 58
9.6 Reset and bootstrap behavior .............................................................................................................. 59
10 Clocks and low power controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10.1 Clocks .................................................................................................................................................. 61
10.2 Low power control ................................................................................................................................ 61
10.3 Low power configuration registers ....................................................................................................... 63
10.4 Clocking sources ................................................................................................................................. 65
11 System services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
11.1 Reset, initialization and debug ............................................................................................................. 67
11.2 Bootstrap ............................................................................................................................................. 68
12 Serial link interface (OS-Link) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
12.1 OS-Link protocol .................................................................................................................................. 70
12.2 OS-Link speed ..................................................................................................................................... 70
12.3 OS-Link connections ............................................................................................................................ 71
13 UART interface (ASC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
13.1 Asynchronous serial controller operation ............................................................................................. 73
13.2 Hardware error detection capabilities .................................................................................................. 76
13.3 Baud rate generation ........................................................................................................................... 76
13.4 Interrupt control .................................................................................................................................... 77
13.5 ASC configuration registers ................................................................................................................. 79
14 Parallel input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
14.1 PIO Port ............................................................................................................................................... 85
15 Byte-wide parallel port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
15.1 EMI mode operation ............................................................................................................................ 88
15.2 Parallel link (DMA) mode operation ..................................................................................................... 88
15.3 Configuration registers ......................................................................................................................... 88
15.4 External data transfer protocols ........................................................................................................... 89
16 Configuration register addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
17 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
18 GPS Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
18.1 Accuracy ............................................................................................................................................ 100
18.2 Time to first fix ................................................................................................................................... 101
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