bt8970 Mindspeed Technologies, bt8970 Datasheet - Page 88

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

5.0 Electrical & Mechanical Specifications
5.6 Microcomputer Interface Timing
Table 5-16. Test and Diagnostic Interface Switching Characteristics
Figure 5-11. JTAG Interface Timing
Figure 5-12. SMON Timing
5-16
NOTE(S):
1. Also applies to functional outputs for the EXTEST instruction.
2. HCLK must be programmed to operate at 16 times the symbol rate (16 x F
Symbol
67
68
69
70
71
72
TDO
TCK
TDI
TMS
TDO Hold after TCK Falling Edge
TDO Delay after TCK Low
TDO Enable (Low Z) after TCK Falling Edge
TDO Disable (High Z) after TCK Low
SMON Hold after HCLK Rising Edge
SMON Delay after HCLK High
SMON
HCLK
69
Preliminary Information/Conexant Proprietary and Confidential
(1)
65
71
(2)
72
(1)
Parameter
66
(2)
(1)
63
(1)
Conexant
67
68
64
QCLK
).
Minimum
Single-Chip HDSL Transceiver
—
—
—
0
2
0
Maximum
70
—
50
—
25
—
50
100101B
Bt8970
100101_023
100101_024
Units
ns
ns
ns
ns
ns
ns