RadiSys EPC - 6A, Hardware Reference Manual

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EPC-6A Hardware Reference
54
Overview
Where a bit position has been described by a 0 or 1, the bit is a ROM bit, and writing to it
has no effect. Unless otherwise noted, all registers and bit values are readable and
writeable. TSEN, when set, inhibits the front panel toggle switch from generating a reset
Memory Control Register (81004h)
This register contains two control bits that pertain to the DRAM and the flash memory:
EVME If set, allows E page (0E0000h) access to and from the VMEbus. This is
necessary because the Phoenix BIOS occupies the memory region 0E0000h ~
0FFFFF at POST. When POST is complete and just before INT 19, this bit is
set to allow VME access.
Register Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 I/O port
Memory Control Register reserved EVME CDEN 8104h
VME A21–16 Address Reg VMEbus address bits 21
–
16 res res 8130h
ID Register, lower 1 1 1 0 1 1 0 0 8140h
ID Register, upper 1 0 0 0 1 1 1 1 8141h
Device Type Reg, lower 1 1 0 0 1 1 0 0 8142h
Device Type Reg, upper 0 0 0 1 1 1 1 1 8143h
Status/Control Reg, lower SRIE RELM ARBPRI RDY PASS NOSF 8144h
Status/Control Reg, upper SLE 1 SYSR SYSF ARBM 1 1 1 8145h
Slave Offset Reg, lower 1 1 1 1 1 1 1 1 8146h
Slave Offset Reg, upper 0 0 0 1 1 1 SLAVE BASE 8147h
Protocol Register, lower 1 1 1 1 1 1 1 1 8148h
Protocol Register, upper 0 1 0 1 1 1 1 1 8149h
Response Register, lower LOCK 1 ABMH 1 1 ULA 814Ah
Response Register, upper 0 0 0 0 1 RRDY WRDY 1 814Bh
Message High Reg, lower 814Ch
Message High Reg, upper 814Dh
Message Low Reg, lower 814Eh
Message Low Reg, upper 814Fh
VME Modifier Register VME WA23
–
22 res IACK res AM4 AM2 AM1 8151h
VME Interrupt State Reg IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 IRQ2 IRQ1 MSGR 8152h
VME Interrupt Enable Reg IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 IRQ2 IRQ1 MSGR 8153h
VME Event State Register 1 1 1 1 WDT ACFA BERR SYSF 8154h
VME Event Enable Register 1 1 1 1 WDT ACFA BERR SYSF 8155h
Module Status/Control Reg DONE AS DS0 DS1 res res FWDT ENRE 8156h
Interrupt Generator Register 1 1 1 1 0 INTERRUPT-OUT 815Fh
FSA7–0 Address Register Flash/SRAM address bits 7
–
0 8380h
FS A15–8 Address Register Flash/SRAM address bits 15
–
8 8381h
FS A19–16 Address Register reserved Flash/SRAM address bits 19
–
16 8382h
Flash Data Register 8383h
SRAM Data Register 8384h
LED Register TSEN LED6 LED5 LED4 LED3 LED2 LED1 LED0 8385h
Memory Control Register reserved EVME CDEN
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