MT92220BG Zarlink Semiconductor, MT92220BG Datasheet - Page 195

• Manufacturer Part Number: MT92220BG
• Description: Description = 1023 Channel Voice Over IP/AAL2 Processor ;; Package Type = Epbga ;; No. Of Pins = 608
• Manufacturer: Zarlink Semiconductor

Data Sheet
AC Characteristics - CPU Interface
t1
Symbol
write_access_active*
read_access_active*
write_access_active falling
edge / read_access_active
falling edge to
inmo_a valid
(non-multiplexed)
inmo_a_das valid
(non-multiplexed)
inmo_d valid (writes)
inmo_ale fall (multiplexed)
inmo_rdy_ndtack
inmo_rdy_ndtack
Notes:
1. inmo_cs, inmo_cs must not have coinciding edges in opposite directions to prevent glitches on the
write_access_active/read_access_active signals.
2. rd_rw_n must be stable any time both inmo_cs and inmo_rd_ds are low to prevent glitches on the
write_access_active/read_access_active signals.
inmo_d[15:0]
inmo_d[15:0]
inmo_ale
inmo_ale
Description
Figure 106 - Multiplexed CPU Interface - Motorola Mode
inmo_cs
inmo_rd_ds
inmo_wr_rw
t15
t15
t9
t9
t1
Zarlink Semiconductor Inc.
t1
read_access_active
t16 t17
t16 t17
Min
t1
t8
*Access Active Generation
Write Access
Read Access
t7
t5
Typical
inmo_cs
inmo_rd_ds
inmo_wr_rw
t14
t3
t3
2 * upclkp - 4
t3
t3
write_access_active
Max
t12
t10
t10
t11
t11
Unit
ns
MT92220
Notes
195