HP E1563A, User Manual, Page: 118 / 166

118 HP E1563A and E1564A Register-Based Programming Appendix B
Reading the Register
•
Via Command Module PEEK command: DIAG:PEEK? 2083330,16
(2083328 = base with logical address 40 + 02 offset; see Figure B-2)
•
Via Digitizer Module PEEK command: DIAG:PEEK? 1
(1 signifies the second word, 16 bits, zero-base numbering system)
The “Programming Examples” on page 130 shows how to read the Device
Type Register.
Status/Control
Register
Writes to the Status/Control Register (base + 04
16
) which enables you to
reset the module and set either A24 or A32 decoding. You can also read the
MODID bit.
Status/Control register bits defined:
base + 04
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write* A Unde-
fined
MOT-
INTEL
A24 undefined F E Undefined S R
Read** A M MOT-
INTEL
A24 Unde-
fined
Memory Size F E Arm Delay RDY P S R
*WRITE BITS (Status/Control Register)
bit 0 R Writing a "1" to this bit resets the digitizer to the power-on state. You must set bit 0
back to a logical "0" before resuming normal operations of the module.
bit 1 S “1” inhibits sysfail, “0” does not inhibit sysfail.
bit 6 E “1” disables error reporting LED, “0” enables error reporting LED (front panel).
bit 7 F “1” disables Flash ROM “write”, “0” enables Flash ROM “write”.
bit 12 A24 “1” sets A24 space as all FIFO, “0” sets A24 space as broken up.
bit 13 MOT-INTEL “1” sets Motorola format for reading ordering, “0” sets Intel format for reading ordering.
bit 15 A “1” enables A32 decoding, “0” enables A24 decoding.
**READ BITS (Status/Control Register)
bit 0 R Reset Status; "1" = module reset, "0" = normal operation.
bit 1 S SYSFAIL inhibit; “1” = inhibited, “0” = not inhibited.
bit 2 P Passed; “1” = passed, “0” = failed.
bit 3 RDY Ready; “1” = A32 decoding enabled, “0” = A24 decoding enabled.
bits 4 & 5 Arm Delay Bit 4 is “1” for 1 mS after a range/filter change then returns to “0”, bit 5 is “1” for 30
mS after range/filter change then returns to “0”.
bit 6 E Error; “1” disables front panel error LED, “0” enables front panel error LED.
bit 7 F Flash ROM; “1” disables Flash ROM “write”, “0” enables Flash ROM “write”.
bits 8, 9,
and 10
Memory
Size
Memory Size; “000” = 4 MBytes, “001” = 8 MBytes, “010” = 16 MBytes, “011” = 32
MBytes, “100” = 64 MBytes, “101” = 128 MBytes.