Motorola MVME2400 Series Service Manual download pdf (Page 55)

100

101

ISA Local Resource Bus

http://www.mcg.mot.com/literature 1-35

Location Monitor Lower Base Address Register

The Location Monitor Lower Base Address Register is an 8-bit register

located at ISA I/O address x1003. The Universe II ASIC is programmed

so that this register can be accessed from the VMEbus to provide VMEbus

location monitor function.

VA[7:4] Lower Base Address for the location monitor function.

LMEN This bit must be set to enable the location monitor

function.

Semaphore Register 1

The Semaphore Register 1 is an 8-bit register located at ISA I/O address

x1004. The Universe II ASIC is programmed so that this register can be

accessible from the VMEbus. This register can only be updated if bit 7 is

low or if the new value has the most significant bit cleared. When bit 7 is

high, this register will not latch in the new value if the new value has the

most significant bit set.

REG Location Monitor Lower Base Address Register - Offset $1003

BIT SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0

FIELD VA7 VA6 VA5 VA4 LMEN

OPER R/W R R R

RESET 00000000

REG Semaphore Register 1 - Offset $1004

BIT SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0

FIELD SEM1

OPER R/W

RESET 00000000

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 353 354

Comments to this Manuals

No comments

Motorola MVME2400 Series Service Manual Page 55

Comments to this Manuals

Related products and manuals for Processors Motorola MVME2400 Series