bt8970 Mindspeed Technologies, bt8970 Datasheet - Page 55

• Manufacturer Part Number: bt8970
• Description: Single-chip Hdsl Transceiver
• Manufacturer: Mindspeed Technologies

Bt8970
4.0 Register
Single-Chip HDSL Transceiver
0x12, 0x13—Startup Timer 2 Interval Register (sut2_low, sut2_high)
A 2-byte read/write register stores the countdown interval for Startup Timer 2 in unsigned binary format. Each
increment represents 1,024 symbol periods. The contents of this register are automatically loaded into its
associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the continuous
mode.
0x14, 0x15—Startup Timer 3 Interval Register (sut3_low, sut3_high)
A 2-byte read/write register stores the countdown interval for Startup Timer 3 in unsigned binary format. Each
increment represents 1,024 symbol periods. The contents of this register are automatically loaded into its
associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the continuous
mode.
0x16, 0x17—Startup Timer 4 Interval Register (sut4_low, sut4_high)
A 2-byte read/write register stores the countdown interval for Startup Timer 4 in unsigned binary format. Each
increment represents 1,024 symbol periods. The contents of this register are automatically loaded into its
associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the continuous
mode.
0x18, 0x19—Meter Timer Interval Register (meter_low, meter_high)
A 2-byte read/write register stores the countdown interval for the Meter Timer in unsigned binary format. Each
increment represents one symbol period. The contents of this register are automatically loaded into its
associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the continuous
mode.
0x1A, 0x1B—SNR Alarm Timer Interval Register (snr_timer_low, snr_timer_high)
A 2-byte read/write register stores the countdown interval for the SNR Alarm Timer in unsigned binary format.
Each increment represents one symbol period. The contents of this register are automatically loaded into its
associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the continuous
mode.
0x1C, 0x1D—General Purpose Timer 3 Interval Register (t3_low, t3_high)
A 2-byte read/write register stores the countdown interval for General Purpose Timer 3 in unsigned binary
format. Each increment represents one symbol period. The contents of this register are automatically loaded into
its associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the
continuous mode.
0x1E, 0x1F—General Purpose Timer 4 Interval Register (t4_low, t4_high)
A 2-byte read/write register stores the countdown interval for General Purpose Timer 4 in unsigned binary
format. Each increment represents one symbol period. The contents of this register are automatically loaded into
its associated timer after the timer’s timer_restart bit is set, or after it counts down to zero while in the
continuous mode.
Conexant
100101B
4-11
Preliminary Information/Conexant Proprietary and Confidential