BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 297

• Manufacturer Part Number: BT8375
• Description: single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
• Manufacturer: CONEXANT [Conexant Systems, Inc]

Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Table 5-17. Test and Diagnostic Interface Timing Requirements
Table 5-18. Test and Diagnostic Interface Switching Characteristics
Figure 5-20. JTAG Interface Timing
N8370DSE
Symbol
Symbol
1
2
3
4
5
6
7
8
TDO
TCK
TDI
TMS
TCK pulse width high
TCK pulse width low
TMS, TDI setup to TCK rising edge
TMS, TDI hold after TCK high
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
7
5.7 JTAG Interface Timing
3
Parameter
Parameter
4
1
Conexant
5
6
2
Minimum
Minimum
80
80
20
20
—
—
2
0
5.0 Electrical/Mechanical Specifications
Maximum
Maximum
—
—
—
—
—
50
—
25
5.7 JTAG Interface Timing
8
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
5-23