The I/O Address Base Address; Figure 3-3. Read Register Bits - Brainboxes IE-285 User Manual

Technical Details
Reg3
Reg4
Reg5
Reg6
Reg7
This address scheme may seem a bit strange but it is
identical to that used by IBM for their board and for the
National Instruments PC2A board and so ensures that the PC
ELITE card is absolutely compatible with these other, older
technology, boards.
NOTE 1: The IEEE input-output is done at the i/o address set
__________
by the DIP switches on the PC Elite board. The
above i/o map is relative to the base address set by
these switches.

The I/O Address Base Address.

___________________________
The PC ELITE IEEE board i/o address can be set to reside
at one of 7 base addresses in the PC using the I/O Address DIP
switches at the lower left hand corner of the board. The factory
set address is 02E1H. See Chapter 2 Figure 2-1. The 7210 TLC
register map is relative to the i/o base address set by the address
DIP switches.
___ REG BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 _____ _____ _____ _____ _____ _____ _____ _____
0 DI7 DI6
1 CPT APT
2 INT SRQI LOK
3 S8 PEND S6
4 CIC /ATN SPMS LPAS TPAS LA
5 CPT7 CPT6 CPT5 CPT4 CPT3 CPT2 CPT1 CPT0
6 X DT0
7 EOI DT1
Chapter 3
0EE1H
12E1H
16E1H
1AE1H
1EE1H
__________________________ _

Figure 3-3. Read Register Bits.

DI5 DI4
DET END
REM
S5
DL0 AD50 AD40 AD30 AD20 AD10
DL1 AD51 AD41 AD31 AD21 AD11.
Serial Poll Mode Register
Address Mode Register
Auxiliary Mode Register
Address 0-1 Register
End Of String Register
DI3 DI2 DI1
DEC ERR DO
CO LOKC REMC ADSC
S4 S3 S2
TA
PC Elite Reference
DI0
DI
S1
MJMN
3-27