Maxim Integrated 73M1822/73M1922 Control Module - Manual (Page 65)

UG_1x22_053 73M1822/73M1922 Control Module User Guide
Rev. 1.0 65
7.7 M1X22_PULSE_DIAL_PARAM_t
Description
This structure is used by the M1X22_ATDP_PARAM IOCTLs to read or modify the pulse dial parameter.
The command field indicates whether it is a read or a write operation.
Prototype
typedef struct m1X22_pulse_dial_param_struct {
unsigned int command; /* pulse dial param command */
unsigned int onhook_duration; /* oh-hook duration */
unsigned int offhook_duration; /* off-hook duration */
unsigned int inter_digit_duration; /* inter-digit duration */
}
M1X22_PULSE_DIAL_PARAM_t;
Parameters
Data Type Name Description
unsigned int command Pulse dial param command:
0 – Read.
1 – Write.
unsigned int onhook_duration On-hook duration.
unsigned int offhook_duration Off-hook duration.
unsigned int intra_digit_duration Intra-digit duration.
7.8 M1X22_THRESH_OVERRIDE_t
Description
Various modem channel parameters are conveniently grouped and predefined in the country parameter
setting as specified in section x. These parameters are programmed during channel initialization IOCTL
(M1X22_CH_INIT). However, these parameters can be overridden at runtime to fine tune to the desired
threshold for the specific installation using this IOCTL.
Prototype
typedef struct
{
unsigned char acz; /* Active Termination Loop */
unsigned char dciv; /* DC current voltage charac. control */
unsigned char rgth; /* Ring threshold
}
M1X22_THRESH_OVERRIDE_t;
Parameters
Data Type Name Description
unsigned char acz Active termination loop.
unsigned char dciv DC current voltage characteristic control.
unsigned char rgth Ring threshold.