Int 2F Fn CB12 - Communicating Applications Specification - Get Hardware [F]
AX = CB12h
DS:DX -> 128-byte status buffer (see #2726,#2728)
Return: AX = 0000h successful
DS:DX buffer filled with hardware-dependent status information
< 0 error code (see #2720)
See Also: AX=CB10h,AX=CB11h
Format of status buffer for Intel Connection CoProcessor:
Offset Size Description (Table 2726)
00h BYTE Connection CoProcessor connection status flags (see #2729)
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 #2730)
06h BYTE baud rate (see #2727)
07h 3 BYTEs reserved
0Ah BYTE Connection CoProcessor hardware status (see #2731)
0Bh BYTE Connection CoProcessor switch states (see #2732)
0Ch BYTE communications flags (see #2733)
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 2727)
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 2728)
00h BYTE SatisFAXtion connection status flags (see #2734)
01h BYTE SatisFAXtion board state (see #2735)
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 2729)
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 2730)
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 2731)
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 2732)
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 2733)
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 2734)
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 2735)
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