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AT94K Datasheet(PDF) 33 Page - ATMEL Corporation

Part # AT94K
Description  5K - 40K Gates of AT40K FPGA with 8-bit Microcontroller, up to 36K Bytes of SRAM and On-chip JTAG ICE
PDF  192 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT94K Datasheet(HTML) 33 Page - ATMEL Corporation

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AT94K Series FPSLIC
Rev. 1138F–FPSLI–06/02
SCR56
0 = Disable XTAL Pin (Rfeedback)
1 = Enable XTAL Pin (Rfeedback)
SCR57
0 = Disable TOSC2 Pin (R
feedback)
1 = Enable TOSC2 Pin (R
feedback)
SCR58 - SCR59
Reserved
SCR60 - SCR61
SCR61 = 0, SCR60 = 0 “1”
SCR61 = 0, SCR60 = 1 AVR System Clock
SCR61 = 1, SCR60 = 0 Timer Oscillator Clock (TOSC1)
(1)
SCR61 = 1, SCR60 = 1 Watchdog Clock
Global Clock 6 mux select (set by using the AT94K Device Options in System
Designer).
Note:
1. The AS2 bit must be set in the ASSR register.
SCR62
0 = Disable CacheLogic Writes to FPGA by AVR
1 = Enable CacheLogic Writes to FPGA by AVR
SCR63
0 = Disable Access (Read and Write) to SRAM by FPGA
1 = Enable Access (Read and Write) to SRAM by FPGA
Table 10. FPSLIC System Control Register
Bit
Description



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