SAA7893 PHILIPS [NXP Semiconductors], SAA7893 Datasheet - Page 18

• Manufacturer Part Number: SAA7893
• Description: Super audio media player
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 10:
[1]
Table 11:
9397 750 10925
Product data
Symbol
t
t
t
t
t
t
Symbol
t
t
t
t
t
tot
su
h
wt
wt(st)
wt(en)
tot
su
h
wt
wt(st)
Fig 12. Timing diagram of reading registers via PI-bus.
When the SAA7893HL SAD16 interface is programmed to generate always a H_WAIT signal, the minimum time will be 2 sys_clk cycles
and the maximum time will be 3 sys_clk cycles.
Timing numbers of writing registers with wait cycles
Parameter
total CSn time
set-up time from CS to host control/address
lines
hold time from CS to host control/address lines
active time of H_WAIT when Pi registers are
accessed
active time of H_WAIT when external SDRAM is
accessed
time from CS until wait becomes active
time H_WAIT inactive until CS becomes inactive
Timing numbers of reading registers via PI-bus
Parameter
total CSn time
set-up time from CS to host control/address
lines
hold time from CS to host control/address lines
active time of H_WAIT when Pi registers are
accessed
active time of H_WAIT when external SDRAM is
accessed
time from CS until wait becomes active
H_DQ[15:0]
H_WAITn
H_A[6:1]
H_A_sel
H_RWn
H_CSn
8.2.4 Read mode: cycles extended using wait protocol
t su
t tri
t wt(st)
Z
Rev. 02 — 26 February 2003
Conditions
speed is dependent on load
on PI-bus
speed is dependent on load
on PI-bus
Conditions
speed is dependent on load
on PI-bus
speed is dependent on load
on PI-bus
t tot
undefined
t wt
t wt(en)
t set
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
data
Min
14
0
0
3
3
5
10
Min
14
0
0
3
3
5
[1]
[2]
Super audio media player
[1]
SAA7893HL
t h
t h(D)
Typ
-
-
-
8
11
-
-
Typ
-
-
-
8
11
-
MBL636
Z
Max
-
30
-
11
17
6
-
Max
-
30
-
11
17
6
[1]
[2]
Unit
sys_clk
ns
ns
sys_clk
sys_clk
sys_clk
ns
Unit
sys_clk
ns
ns
sys_clk
sys_clk
sys_clk
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