CN8330EPD CONEXANT [Conexant Systems, Inc], CN8330EPD Datasheet - Page 76

• Manufacturer Part Number: CN8330EPD
• Description: DS3/E3 Framer with 52 Mbps HDLC Controller
• Manufacturer: CONEXANT [Conexant Systems, Inc]

4.0 Mechanical/Electrical Specifications
4.1 Timing Requirements
Table 4-1. Microprocessor Interface Timing (2 of 2)
Figure 4-1. Microprocessor Interface Timing
4-2
t
t
t
t
—
NOTE(S):
(1)
(2)
clcl
ds
dh
sh
T
The external address/data bus capacitance will increase the data hold time if the bus remains undriven.
cyc
Symbol
= Period of clock connected to the DS3CKI pin.
RD*/WR*
AD[7:0]
ALE
CS
ALE Low to RD*/WR* Low
Data Stable Before WR* High
Data Hold after WR* High
Address/Select Hold after RD*/WR* Low
Controller Port Cycle Time
t cale
t as
t adrdl
t ah
Parameter
t clcl
Conexant
t adwrh
t rdd
t wrw
DS3/E3 Framer with 52 Mbps HDLC Controller
Min.
110
154
t sh
10
25
10
t ds
Typical
—
—
—
—
—
t rdh
t dh
t rwa
Max.
—
—
—
—
—
Units
CN8330
ns
ns
ns
ns
ns
100441E