XRT79L71 Datasheet, PDF (57/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

áç
PRELIMINARY
1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
FIGURE 9. SYNCHRONOUS MODE 4 - IDT 3051/52 INTERFACE TIMING (READ CYCLE)
XRT79L71
REV. P1.0.3
pCLK
pCS_L
pALE
pA[14:0]
pD[7:0]
pRdy_L
pRD_L
pWR_L
pDBEN_L
Address
t5
t7
Data
t8
t9
t10
t11
NOTE: The values for "t0" through "t11" can be found in Table 6.
TABLE 6: TIMING INFORMATION FOR THE MICROPROCESSOR INTERFACE, WHEN CONFIGURED TO OPERATE IN THE
IBM POWER PC403 MODE
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 2.5V±5%, unless otherwise specified.
TIMING
DESCRIPTION
MIN.
TYP.
MAX.
t0
pCS_L low to Clock high
6
-
-
t1
pALE high to Clock high
1
-
-
t2
Clock high to pALE low
6
-
-
t3
Data setup time (WRITE cycle)
-
-
N/N
t4
Data hold time (WRITE cycle)
-
-
N/N
t5
Clock high to pRDY_L low
-
-
11
t6
Clock high to pWR_L high
6
-
-
t7
Clock high to Data valid (READ cycle)
-
-
N/N
t8
Clock high to pRDY_L high
-
-
11
t9
pRDY_L high to Data invalid
0
-
-
45