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参数资料
| 型号： | GP2021 |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | GPS 12 channel Correlator Advance Information |
| 中文描述： | 全球定位系统12通道相关器研究进展信息 |
| 文件页数： | 8/62页 |
| 文件大小： | 372K |
| 代理商： | GP2021 |
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16
GP2021
WREN
READ
NCS
A<9:2>
D<15:0>
Read
Write
Delayed Write
Delayed Read
NOTE: OP and IP are with respect to the GP2021. OP denotes a GP2021 Output, IP denotes a processor output.
OP
IP
OP
IP
300ns (314ns)
Fig.13 Correlator Bus Timing - Write to Write and Write to Read Timings
ARM60
GP2021
Memory
NRAM
NROM
NEEPROM
NSPARE_CS
NW<3:0>
NRD
D<15:0>
A<9:2>
A<19:10>
DBE
ARM_ALE
MCLK
NRW
NMREQ
NBW
D<15:0>
A<9:2>
A<22:20>, A<1:0>
NOPC
ABORT
A<19:10>
(NRESET_OP, ACCUM_INT and MEAS_INT not shown)
Fig.14 ARM System Mode
Note that the exact number of wait states which need to be
inserted after a correlator write is not fixed. If the processor
were to perform a correlator write then spend 400ns
accessing a different peripheral, subsequent correlator reads
and writes would incur no additional delay. It is anticipated
that correlator wait states will be generated by either one or
two external counters, preset on the falling edge of a correlator
write, and which then count down to zero. Only once the
counter has reached zero may the next correlator access
either complete (write) or start (read).
A series of correlator reads and writes are shown in Fig.13.
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相关代理商/技术参数 |
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| GP2021IGGQ1R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Correlator |
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| GP2-031X250-50 | 制造商:GROOV-PIN 功能描述: |
| GP204 | 制造商:DEC 制造商全称:DEC 功能描述:2 AMP SOFT GLASS PASSIVATED DIODES |
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