Emulex Fas216 Scsi Controller; 68681 Duart; Table 9: Emulex Fas216 Scsi Controller Register Map; Table 10: Motorola 68681 Duart Register Map - Performance Computer PT-VME161 User Manual

4
Section FUNCTIONAL SUMMARY

EMULEX FAS216 SCSI Controller

68681 DUART

72 Extensible Single Board Computer/Controller User's Manual

Table 9: EMULEX FAS216 SCSI Controller Register Map

ADDRESS READ FUNCTION
0A000000h Transfer Counter Low
0A000001h Transfer Counter Mid
0A000002h
0A000003h Command
0A000004h Status
0A000005h Interrupt
0A000006h Sequence Step
0A000007h FIFO Flags
0A000008h Configuration 1
0A000009h Reserved
0A00000Ah Reserved
0A00000Bh Configuration 2
0A00000Ch Configuration 3
0A00000Dh Reserved
0A00000Eh Transfer Counter High
0A00000Fh Reserved

Table 10: Motorola 68681 DUART Register Map

ADDRESS READ FUNCTION
08000000h Mode Register A
08000001h Status Register
08000002h DO NOT READ
08000003h Receiver Buffer A
08000004h Input Port Change Reg
08000005h Interrupt Status Reg
08000006h Counter Mode: MSB
08000007h Counter Mode: LSB
08000008h Mode Register B
08000009h Status Register B
0800000Ah DO NOT READ
0800000Bh Receiver Buffer B
0800000Ch Interrupt Vector Reg
0800000Dh Input Port (unlatched)
0800000Eh Start-Counter Command
0800000Fh Stop-Counter Command
WRITE FUNCTION
Transfer Count Low
Transfer Count Mid
FIFO
Select/Reselect Bus ID
Select/Reselect Time-out
Synchronous Xfer Period
Synchronous Offset
Configuration 1
Clock Conversion Factor
Configuration 2
Configuration 3
Transfer Count High
Reserve FIFO Byte
WRITE FUNCTION
Mode Register A
Clock Select Register A
Command Register A
Transmitter Buffer A
Auxiliary Control Register
Interrupt Mask Register
Counter/Timer Upper
Counter/Timer Lower
Mode Register B
Clock Select Register B
Command Register B
Transmitter Buffer B
Interrupt Vector Reg
Output Port Config Reg
Output Port - Bit Set
Output Port - Bit Reset
INIT
-
-
FIFO -
Command -
-
-
-
-
07
05
Test mode -
20
01
Reserved -
-
-
INIT
13-07
BB
-
-
B0
33
-
-
13-07
BB
-
-
40
00
FF
00