Int 2F/AX=CB12h

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Communicating Applications Specification - GET HARDWARE STATUS

AX = CB12h
DS:DX -> 128-byte status buffer (see #03054,#03056)

Return:
AX = 0000h successful DS:DX buffer filled with hardware-dependent status information < 0 error code (see #03048)

See Also: AX=CB10h - AX=CB11h

Format of status buffer for Intel Connection CoProcessor: Offset Size Description (Table 03054) 00h BYTE Connection CoProcessor connection status flags (see #03057) 01h BYTE number of kilobytes of free buffer space 02h BYTE page buffer status

bit 7:
Connection CoProcessor has documents to send

bits 6-0:
Number of pages in buffer 03h BYTE number of retries left for dialing number 04h BYTE page number to retransmit 05h BYTE communications status (see #03058) 06h BYTE baud rate (see #03055) 07h 3 BYTEs reserved 0Ah BYTE Connection CoProcessor hardware status (see #03059) 0Bh BYTE Connection CoProcessor switch states (see #03060) 0Ch BYTE communications flags (see #03061) 0Dh BYTE reserved 0Eh WORD error count (only valid while busy, reset when idle) 10h DWORD size of nonstandard format (NSF) file in bytes 14h BYTE 'A' if Connection CoProcessor board present 15h 9 BYTEs reserved 1Eh 21 BYTEs ASCIZ CCITT identification 33h 77 BYTEs reserved

Note: The Intel Connection CoProcessor and SatisFAXtion may be distinguished by examining the byte at offset 14h

Bitfields for Connection CoProcessor baud rate: Bit(s) Description (Table 03055) 7 reserved 6-4 baud rate. 000 = 300 baud (V.21 SDLC or HDLC mode). 100 = 2400 baud (V.27 ter). 101 = 4800 baud (V.27 ter). 110 = 7200 baud (V.29). 111 = 9600 baud (V.29) 3-0 reserved, should be 0110

Format of status buffer for Intel SatisFAXtion board: Offset Size Description (Table 03056) 00h BYTE SatisFAXtion connection status flags (see #03062) 01h BYTE SatisFAXtion board state (see #03063) 02h BYTE number of KB free in buffer 03h BYTE number of pages or files in buffer 04h BYTE number of redials remaining on current number 05h BYTE FAX page number to retransmit 06h BYTE current page/file in block transfer 07h BYTE number of rings received (only if auto-answer enabled) 08h WORD error count 0Ah DWORD length of file being transferred 0Eh 6 BYTEs reserved 14h BYTE 'B' if SatisFAXtion board present 15h 13 BYTEs ASCIZ transfer agent name 22h 5 BYTEs ASCIZ transfer agent version number 27h 13 BYTEs ASCIZ resident loader name 34h 5 BYTEs ASCIZ resident loader version number 39h 21 BYTEs ASCIZ remote CSID 4Eh 13 BYTEs ASCIZ resident manager name 5Bh 5 BYTEs ASCIZ resident manager version number 60h 32 BYTEs reserved

Note: The Intel Connection CoProcessor and SatisFAXtion may be distinguished by examining the byte at offset 14h

Bitfields for Connection CoProcessor connection status flags: Bit(s) Description (Table 03057) 7 hardware busy sending or receiving 6 last page of data 5 no data on current page 4 retransmit request for current page being transmitted 3 NSF (nonstandard file) mode active 2-0 reserved

Bitfields for communications status: Bit(s) Description (Table 03058) 7 originating call 6 FAX message to be sent 5 on line 4 ring detected and receive enabled 3 buffer dumped on receive 2-0 hardware sequence state. 000 idle. 001 dial. 010 answer. 011 transmit. 100 receive. 101 pre-message. 110 post-message. 111 disconnect

Bitfields for Connection CoProcessor hardware status: Bit(s) Description (Table 03059) 7 modem option installed 6 Connection CoProcessor has control of DAA (not latched) 5 on line (not latched) 4 ring detected (not latched) 3 data in command buffer (not latched) 2 set if using DMA channel 1, clear if using DMA channel 3 1 line length compensation 1 set (not latched) 0 line length compensation 0 set (not latched)

Bitfields for Connection CoProcessor switch states: Bit(s) Description (Table 03060) 7 reserved 6 unused 5 spare switch open 4 FAX ADR1 switch open 3 FAX ADR0 switch open 2 alternate interrupt switch open 1 COM SEL 1 switch open 0 COM SEL 0 switch open

Note: Valid combinations of 0-2 are. 000 COM2 IRQ3 IObase 2F8h. 001 COM1 IRQ4 IObase 3F8h. 010 COM4 IRQ3 IObase 2E8h. 011 COM3 IRQ4 IObase 3E8h. 110 COM4 IRQ2 IObase 2E8h. 111 COM3 IRQ5 IObase 3E8h

Bitfields for communications flags: Bit(s) Description (Table 03061) 7 reserved 6 auxiliary relay forced ON 5 modem select relay forced ON 4 offhook relay forced ON 3 9600 bps enabled 2 7200 bps enabled 1 4800 bps enabled 0 2400 bps enabled

Bitfields for SatisFAXtion connection status flags: Bit(s) Description (Table 03062) 7 busy in T.30 CCITT fax protocol 6 data on current page/file (only used for block xfers) 5 retransmission of last page requested 4 in file transfer mode 3 data in buffer 2 data buffer dumped on receive 1 200x100 dpi resolution instead of 200x200 dpi 0 data modem in use, FAX image modem not available

Bitfields for SatisFAXtion board state: Bit(s) Description (Table 03063) 7 reserved 6 handset jack active, data and FAX modems not available 5-3 current rate. 000 300 bps (V.21 HDLC). 100 2400 bps (V.27 ter). 101 4800 bps (V.27 ter). 110 7200 bps (V.29). 111 9600 bps (V.29) 2-0 T.30 CCITT protocol state. 000 idle. 001 dialing. 010 answering. 011 transmitting. 100 receiving. 101 pre-message. 110 post-message. 111 disconnect

Category: Fax - Int 2Fh - C

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