
BVME310
Copyright
1997 BVM Ltd.
19
8. Specification
8.1 On-Board Functions
MC68HC000
10MHz 16/32bit Reduced Power 68000 Microprocessor.
Serial PORT
Two RS232 ports using MC68681 DUART.
Connection via 14way IDC socket through the Front Panel.
Independently Programmable baud rates 50 to 38.4 Kbaud.
Counter Timer One 16-bit using the 68681 DUART.
EPROM
Support for 27C512, 27C010 and 27C020 devices. Zero wait state
SRAM
451-48011 -
512Kbytes zero wait state .
451-48013 -
2Mbyte zero wait state.
EEPROM
NMC93C46A 1024 bit non volatile storage. Accessed via the I/O interface on the
68681.
RTC
DS1215S Timer Clock Peripheral Battery Backed for 10 years. Backup via a 3.6V
lithium Cell
LOCAL BUS
25.6
µ
S
TIMEOUT
GREEN LED
Indicates CPU Running Valid Code.
RED LED
Indicates BVME310 is current VMEbus Master.
RESET Switch.
ABORT Switch (Generates an Autovectored 7 Interrupt if enabled).
8.2 VMEbus Master
Single Level 3 Requester
A24, A16
D16, D08(EO)
RMW
AM6
Interrupt handler D08(O): I(1-7) all levels, link selectable.
8.3 VMEbus System Controller Functions
ARBITER: SGL, level3, FAIR ROR.
SYSCLK Driver.
SYSRESET Driver/Monitor power-up and switch.
VMEbus RESET minimum period = 200mS.
BUS TIMEOUT period 25.6
µ
S.
ACFAIL monitor (level 7 auto-vectored interrupt).