Texas Microsystems, Inc. 2003 - 5 Modules; Central Processing Units (Cpus); B286 (At) Cpu; Description

5. K>CUI.ES
5.1 Central Processing units (CRJs)
Paragraphs of this section of the manual which pertain to all revision
levels of the B286 CRJ make no notation of revision level in their
paragraph title. '!hose paragraphs which pertain only to specific
revision levels of the B286 CRJ card, designate this applicability and
limitation in the paragraph title. Users should make note of the
Revision Level of the CRJ card (referenced on the serial number tag).
After noting the CRJ card revision, users should utilize those sub-
sections/paragraphs of this manual which pertain to their particular
CRJ revision.
5.1.1 B286 (AT) CRJ
5.1.2 Description
'!he B286 is an IaI PC/AT c:anpatible CRJ board, designed for imustrial
applications. '!he PC/AT sized card plugs into a passive backplane
(BP2 or BP3) and provides the central processing functions of an
imustrial computer.
'!he board contains an 80286 6Mhz (optional 8Mhz or 10Mhz) 16 bit
microprcx:essor, optional 80287 numeric processor, 512KB or 1MB of
parity checked randan access mem::)):y (RAM), battery backed up clock, 50
bytes of battery backed up CMJS RAM, long life batte:r:y, 15 interrupt
channels, 7 I:MA channels, real-time-clock, keyboard interface
microprocessor, audio generator am driver, extemal. reset switch and
16 bit PC/AT bus interface electronics.
'!he board is implemented with (M)S am advanced law p<JW'er shottky gate
arrays for mininrum power c:onsunption. Interfaces to the board, other
than the standal:d PC/AT bus are for keyboard am speaker connections,
am an extemal. audio jack. '!he PCB is implemented with 4 circUit
layers, one power plane am 1 ground plane~
5.1.3 Specifications
Temperature range
Relative HLnnidity
Supply requirements
Battery rating
Power OFF battery drain
Dimensions
Weight
skirt Protrusion
Operating Speed
or
on Board Memo:ty wait states
&ls Memo:ty wait states
8 Bit I/O wait states
16 Bit I/O wait states
Stamard 80287 Clock speed
Optional 80287 Speed
Pre1imina.:ty AT Users Manual
24
0° to 60
0
e
95% Non-corrlensing
+5V at 2. 2A typical
3.5V 750mAH
.017mA typical
14.5" x 6.5" x .55"
1 lb.
.4"
6Mhz !.D / 8Mhz Hi
6Mhz !.D / 10Mhz Hi
1
1 (optionally 2 at Hi Speed)
4 !.D, 6 Hi
1 !.D, 2 Hi
2/3 of CRJ Clock speed
8 Mhz and 10 Mhz options
11/26/86 (11/08/87)