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88 Register-Based Programming Appendix B
Relay Control
Register
There are 16 relay control registers: Bank 0 Relay Control Register (base +
20
16
) through Bank 15 Relay Control Register 2 (base + 3E
16
). These
registers are used to open and close the specified matrix relays. Reading
any Relay Control Register will always return FFFF
16
regardless of the
channel states.
The numbers in the register maps indicate the channel number to be
written to. To close a relay, you must write a 1 to the bit. For example,
WRITEIO-16,(DE00
16
);0010
16
closes bit 4 of bank 0 (channel 004), where
DE00
16
is the base address, 20
16
is the offset address, and 0010 is the
hexadecimal number to send a 1 to bit 4.
Bank 0 Relay Control Register
Address
Base+20
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
015 014 013 012 011 010 009 008 007 006 005 004 003 002 001 000
Bank 1 Relay Control Register
Address
Base+22
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
115 114 113 112 111 111 109 108 107 106 105 104 103 102 101 100
Bank 2 Relay Control Register
Address
Base+24
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200
Bank 3 Relay Control Register
Address
Base+26
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
315 314 313 312 311 310 309 308 307 306 305 304 303 302 301 300
Bank 4 Relay Control Register
Address
Base+28
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
415 414 413 412 411 410 409 408 407 406 405 404 403 402 401 400
Bank 5 Relay Control Register
Address
Base+2A
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
515 514 513 512 511 510 509 508 507 506 505 504 503 502 501 500
Bank 6 Relay Control Register
Address
Base+2C
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
615 614 613 612 611 610 609 608 607 606 605 604 603 602 601 600