st20-gp6 STMicroelectronics, st20-gp6 Datasheet - Page 65
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st20-gp6
Manufacturer Part Number
st20-gp6
Description
Gps Processor
Manufacturer
STMicroelectronics
Datasheet
1.ST20-GP6.pdf
(123 pages)
- Current page: 65 of 123
- Download datasheet (2Mb)
10.5 Boot source
The CPU boots from ROM, unless the diagnostic control unit (DCU) is configured (via the TAP) to
start in diagnostic mode: in which case code is loaded, and the CPU booted, via the DCU.
10.6 Default configuration
The default configuration is loaded into all four banks on reset. It allows the EMI to read data from a
slow ROM memory. The default parameters are given in Table 10.10.
.
Parameter
DataDriveDelay
BusReleaseTime
CEactive
OEactive
BEactive
Portsize
DeviceType
AccessTimeRead
CEe1TimeRead
CEe2TimeRead
OEe1TimeRead
OEe2TimeRead
LatchPoint
Table 10.10 Default configuration
Default value
101 (5 phases)
10 (2 cycles)
01 (active during read only)
01 (active during read only)
00 (inactive)
Determined by the BusWidth signal
001 (SRAM/peripheral)
1000 (8+2=10 cycles)
00 (0 phases)
00 (0 phases)
00 (0 phases)
00 (0 phases)
0 (1 cycle before end of access cycle)
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