cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 275

• Manufacturer Part Number: cn8236
• Description: Atm Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

CN8236
ATM ServiceSAR Plus with xBR Traffic Management
Figure 10-10. CN8236/RS825x Read/Write Functional Timing
28236-DSH-001-B
LADDR[13:0]
LDATA[7:0]
SYSCLK
PWAIT*
PRDY*
PWNR
PCS*
PAS*
tA
1, 2 Read Cycle
edge of SYSCLK) the RS825x samples PCS*, PAS*, and PWNR low, indicating
a read cycle. By the next rising edge of SYSCLK at cycle 2, the data is output by
the RS825x to be latched by the CN8236. The same procedure occurs for a write
except that at cycle 4, PWNR is sampled high. The RS825x then latches the data
to the appropriate internal register on the next SYSCLK rising edge at cycle 5.
1
Figure 10-10
Read Address
Read Data
tD
Mindspeed Technologies
2
shows a read and write RS825x access. At cycle 1 (the rising
3
tA
4, 5 Write Cycle
Write Address
Write Data
4
™
tD
5
10.0 Local Processor Interface
10.6 Standalone Operation
6
10-17
8236_068