CX28398 Conexant Systems, CX28398 Datasheet - Page 265

• Manufacturer Part Number: CX28398
• Description: (CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
• Manufacturer: Conexant Systems

CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
Figure 4-15. Serial Control Port Read Timing
Table 4-16. Host Serial Port Timing
100054E
Symbol
2, 3
2, 3
—
SERCKO
1
4
5
SERCS*
SERDO
SERDI
SERCKO Falling Edge to SERCS* and SERDO
SERCKO Duty Cycle
SERCKO Frequency (Programmable)
SERDI to SERCKO Rising Edge Setup Time
SERCKO Rising Edge to SERDI Hold Time
Rise/Fall Time (10% to 90%)
SERCKO, SERDI, SERDO
1
1
Parameter
Address/Command
2
Byte
A0
3
Conexant
A1
D5
4
Minimum
D6
Read Data Byte
1.024
5
10
40
10
—
5
4.0 Electrical/Mechanical Specifications
D7
Maximum
8.192
—
60
—
—
20
4.5 MPU Interface Timing
Units
MHz
ns
ns
ns
ns
%
4-17