atsam9708 ATMEL Corporation, atsam9708 Datasheet - Page 12

• Manufacturer Part Number: atsam9708
• Description: Sound Synthesis Atsam9708 128-voice Integrated Sound Synthesizer
• Manufacturer: ATMEL Corporation

Table 11-1.
Notes:
12
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AVCS
CSLDRL
RDHCSH
PRD
RDLDV
DRH
RDLIORL
PIRO
IORHDV
CSLIOCS
CSHIOCS
CSLWRL
WRHCSH
PWR
WRLIORL
IORHWRH
DWS
DWH
1. When data is already loaded into internal ATSAM9708 output register. In this case PC_READY stays high during the read
2. PC_READY goes into low only if the data is not ready to be loaded into/read from internal ATSAM9708 register. 128 t
3. PC_IO16 is asserted low by ATSAM9708 if A2A1 = 10 to indicate fast 16-bit ISA bus transfer to the PC.
ATSAM9708
cycle.
responds to a single worst-case situation. At f
ISA bus timing.
PC Host Interface Timing Parameters
Parameter
Address valid to chip select low
Chip select low to PC_RD low
PC_RD high to PC_CS high
PC_RD pulse width
Data out valid from PC_RD
Data out hold from PC_RD
PC_READY low from PC_RD
PC_READY pulse width
PC_READY rising to data out valid
PC_IO16 low from PC_CS low
PC_IO16 high from PC_CS high
PC_CS low to PC_WR low
PC_WR high to PC_CS high
PC_WR pulse width
PC_READY low from PC_WR low
PC_READY high to PC_WR high
Write data setup time
Write data hold time
(2)
(1)
(2)
(3)
(3)
(2)
(2)
(2)
CK
= 12.288 MHz, PC_READY is likely to never go low when using standard
Min
50
50
10
0
5
5
5
0
0
0
5
5
0
5
0
Typ
Max
128
20
10
10
20
20
10
1772E–DRMSD–10-Apr-06
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
ck
ck
cor-