st20-gp1 STMicroelectronics, st20-gp1 Datasheet - Page 3

• Manufacturer Part Number: st20-gp1
• Description: Gps Processor
• Manufacturer: STMicroelectronics

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